Python function to convert seconds into minutes hours and days

Question

Question   Write a program that asks the user to enter a number of seconds  and works as follows    There are 60 seconds in a minute  If the number of seconds entered by the user is greater than or equal to 60  the program should display the number of minutes in that many seconds  There are 3600 seconds in an hour  If the number of seconds entered by the user is greater than or equal to 3600  the program should display the number of hours in that many seconds  There are 86400 seconds in a day  If the number of seconds entered by the user is greater than or equal to 86400  the program should display the number of days in that many seconds    What I have so far   def time        sec   int  input   Enter the number of seconds   strip        if sec  lt   60          minutes   sec    60         print  The number of minutes is  0  2f   format minutes        if sec   lt   3600           hours   sec    3600         print  The number of minutes is  0  2f   format hours       if sec  lt   86400          days   sec    86400         print  The number of minutes is  0  2f   format days       return

User · Answer

These functions are fairly compact and only use standard Python 2.6 and later.

def ddhhmmss(seconds):
    """Convert seconds to a time string "[[[DD:]HH:]MM:]SS".
    """
    dhms = ''
    for scale in 86400, 3600, 60:
        result, seconds = divmod(seconds, scale)
        if dhms != '' or result > 0:
            dhms += '{0:02d}:'.format(result)
    dhms += '{0:02d}'.format(seconds)
    return dhms


def seconds(dhms):
    """Convert a time string "[[[DD:]HH:]MM:]SS" to seconds.
    """
    components = [int(i) for i in dhms.split(':')]
    pad = 4 - len(components)
    if pad < 0:
        raise ValueError('Too many components to match [[[DD:]HH:]MM:]SS')
    components = [0] * pad + components
    return sum(i * j for i, j in zip((86400, 3600, 60, 1), components))

And here are tests to go with them. I'm using the pytest package as a simple way to test exceptions.

import ddhhmmss

import pytest


def test_ddhhmmss():
    assert ddhhmmss.ddhhmmss(0) == '00'
    assert ddhhmmss.ddhhmmss(2) == '02'
    assert ddhhmmss.ddhhmmss(12 * 60) == '12:00'
    assert ddhhmmss.ddhhmmss(3600) == '01:00:00'
    assert ddhhmmss.ddhhmmss(10 * 86400) == '10:00:00:00'
    assert ddhhmmss.ddhhmmss(86400 + 5 * 3600 + 30 * 60 + 1) == '01:05:30:01'
    assert ddhhmmss.ddhhmmss(365 * 86400) == '365:00:00:00'


def test_seconds():
    assert ddhhmmss.seconds('00') == 0
    assert ddhhmmss.seconds('02') == 2
    assert ddhhmmss.seconds('12:00') == 12 * 60
    assert ddhhmmss.seconds('01:00:00') == 3600
    assert ddhhmmss.seconds('1:0:0') == 3600
    assert ddhhmmss.seconds('3600') == 3600
    assert ddhhmmss.seconds('60:0') == 3600
    assert ddhhmmss.seconds('10:00:00:00') == 10 * 86400
    assert ddhhmmss.seconds('1:05:30:01') == 86400 + 5 * 3600 + 30 * 60 + 1
    assert ddhhmmss.seconds('365:00:00:00') == 365 * 86400


def test_seconds_raises():
    with pytest.raises(ValueError):
        ddhhmmss.seconds('')
    with pytest.raises(ValueError):
        ddhhmmss.seconds('foo')
    with pytest.raises(ValueError):
        ddhhmmss.seconds('1:00:00:00:00')

User · Answer

The  timeit  answer above that declares divmod to be slower has seriously flawed logic   Test1 calls operators   Test2 calls the function divmod   and calling a function has overhead   A more accurate way to test would be   import timeit  def moddiv a b     q  a b   r  a b   return q r  a 10 b 3 md 0 dm 0 for i in range 1 10     c a i   md   timeit timeit  lambda  moddiv c b     dm  timeit timeit  lambda  divmod c b    print  moddiv    md  print  divmod    dm      moddiv  5 806157339000492  divmod  4 322451676005585   divmod is faster

User · Answer

Patching as well Ralph Bolton s answer  Moving to a class and moving tulp of tulp  intervals  to dictionary  Adding an optional rounded function depending of granularity  enable by default   Ready to translation using gettext  default is disable   This is intend to be load from an module  This is for python3  tested 3 6 - 3 8   import gettext import locale from itertools import chain  mylocale   locale getdefaultlocale     see -- gt  https   stackoverflow com a 10174657 11869956 thx   localedir   os path join os path dirname   file      locales     or python  gt  3 4  try      localedir   pathlib Path   file    parent  locales      lang translations   gettext translation  utils   localedir                                               languages  mylocale 0        lang translations install           lang translations gettext except Exception as exc      print  Error  unexcept error while initializing translation    file sys stderr      print f Error   exc    file sys stderr      print f Error  localedir  localedir   languages  mylocale 0     file sys stderr      print  Error  translation has been disabled    file sys stderr          gettext gettext   Here is the class   class FormatTimestamp         Convert seconds to  optional rounded  time depending of granularity s degrees          inspired by https   stackoverflow com a 24542445 11869956        def   init   self             For now i haven t found a way to do it better           TODO  optimize                self intervals                    years          31556952     https   www calculateme com time years to-seconds                https   www calculateme com time months to-seconds  - gt  2629746 seconds               But it s outputing some strange result                 So 3 seconds less  2629743    4 weeks  2 days  10 hours  29 minutes and 3 seconds               than after 3 more seconds   1 month                   Google give me 2628000 seconds               So 3 seconds less  2627997   4 weeks  2 days  9 hours  59 minutes and 57 seconds               Strange as well                So for the moment latest is week                   months         2419200    60   60   24   7   4               weeks          604800     60   60   24   7              days           86400       60   60   24              hours          3600       60   60              minutes        60               seconds       1                       self nextkey                  seconds         minutes                minutes         hours                hours           days                days            weeks                weeks           weeks                 months          months                 years           years    stop here                       self translate                  weeks             weeks                 days              days                 hours             hours                 minutes           minutes                 seconds           seconds                   Single              week              week                 day               day                 hour              hour                 minute            minute                 second            second                  and              and                                              This is for compatibility                               0           same here BUT we CANNOT pass empty string to gettext                                            or we get   warning  Empty msgid   It is reserved by GNU gettext                                            gettext     returns the header entry with                                           meta information  not the empty string                                            Thx to -- gt  https   stackoverflow com a 30852705 11869956 - saved my day                    def convert self  seconds  granularity 2  rounded True  translate False              Proceed the conversion             def  format result                  Return the formatted result             TODO   numpy   google docstrings                start   1              length   len result              none   0             next item   False             for item in reversed result                      if item  value                          if we have more than one item                     if length - none  gt  1                            This is the first  real  item                          if start    1                              item  punctuation                                    next item   True                         elif next item                                This is the second  real  item                               Happened  and  to key name                             item  punctuation       and                              next item   False                           If there is more than two  real  item                           than happened                             elif 2  lt  start                              item  punctuation                                 else                              item  punctuation                            else                          item  punctuation                            start    1                 else                      none    1             return      value             mydict  value                             name              mydict  name strip                            punctuation       mydict  punctuation     for mydict in result                                                                     if mydict  value   is not None             def  rstrip value  name                  Rstrip  s  name depending of value                if value    1                  name   name rstrip  s               return name             Make sure granularity is an integer         if not isinstance granularity  int               raise ValueError f Granularity should be an integer   granularity               For seconds only don t need to compute         if seconds  lt  0              return  any time now           elif seconds  lt  60              return  less than a minute            result              for name  count in self intervals items                value   seconds    count             if value                  seconds -  value   count                 name strip    rstrip value  name                    save as dict  value  name strip  eventually strip   name  for reference   value in seconds                   and count  for reference                  result append                             value             value                           name strip        name strip                           name              name                            seconds           value   count                           count             count                                                 else                  if len result   gt  0                        We strip the name as second    0                     name strip   name rstrip  s                         adding None to key  value  but keep other value                       in case when need to add seconds when we will                        recompute every thing                     result append                             value             None                           name strip        name strip                           name              name                            seconds           0                           count             count                                                Get the length of the list         length   len result            Don t need to compute everything   every time         if length  lt  granularity or not rounded              if translate                  return     join   0   1  2   format item  value      self translate item  name                                                         self translate item  punctuation                                                        for item in  format result               else                  return     join   0   1  2   format item  value    item  name    item  punctuation                                                      for item in  format result            start   length - 1           Reverse list so the firsts elements            could be not selected depending on granularity            And we can delete item after we had his seconds to next           item in the current list  result          for item in reversed result                  if granularity  lt   start  lt   length - 1                    So we have to round                 current index   result index item                  next index   current index - 1                   skip item value    None                   if the seconds of current item is superior                   to the half seconds of the next item  round                 if item  value   and item  seconds    gt  result next index   count      2                         1 to the next item  in seconds  depending on item count                      result next index   seconds      result next index   count                     Remove item which is not selected                 del result current index              start -  1           Ok now recalculate everything           Reverse as well          for item in reversed result                    Check if seconds is superior or equal to the next item                but not from  result  list but from  self intervals  dict               Make sure it s not None             if item  value                    next item name   self nextkey item  name                      This mean we are at weeks                 if item  name      next item name                        Just recalcul                     item  value     item  seconds      item  count                       item  name strip      rstrip item  value    item  name                      Stop to weeks to stay  right                   elif item  seconds    gt   self intervals next item name                         First make sure we have the  next item                        found via -- gt  https   stackoverflow com q 26447309 11869956                       maybe there is a faster way to do it   - TODO                     if any search item  name      next item name for search item in result                           next item index   result index item  - 1                           Append to                         result next item index   seconds      item  seconds                             recalculate value                         result next item index   value     result next item index   seconds                                                                   result next item index   count                             strip or not                         result next item index   name strip      rstrip result next item index   value                                                                           result next item index   name                        else                            Creating                          next item index   result index item  - 1                           get count                         next item count   self intervals next item name                            convert seconds                         next item value   item  seconds      next item count                           strip  s  or not                         next item name strip    rstrip next item value  next item name                            added to dict                         next item                                             value           next item value                                          name strip      next item name strip                                          name            next item name                                          seconds         item  seconds                                            count           next item count                                                                    insert to the list                         result insert next item index  next item                        Remove current item                     del result result index item                   else                        for current item recalculate                       keys  value  and  name strip                      item  value     item  seconds      item  count                       item  name strip      rstrip item  value    item  name            if translate              return     join   0   1  2   format item  value                                                       self translate item  name                                                         self translate item  punctuation                                                        for item in  format result           else              return     join   0   1  2   format item  value    item  name    item  punctuation                                                      for item in  format result     To use it   myformater   FormatTimestamp   myconverter   myformater convert seconds        granularity   1 - 5   rounded   True   False  translate   True   False   Some test to show difference   myformater   FormatTimestamp   for firstrange in  131440  563440  604780  2419180  113478160       print f      Seconds    firstrange             print   tFull - function   0   format display time firstrange  granularity 5        print   tFull -    class   0   format myformater convert firstrange  granularity 5         for secondrange in range 1  6  1           print   tGranularity   this   answer   0     1   format secondrange                                                                myformater convert firstrange                                                                                  granularity secondrange  translate False            print   tGranularity Bolton  s answer   0     1   format secondrange  display time firstrange                                                                                  granularity secondrange        print        Seconds   131440      Full - function  1 day  12 hours  30 minutes  40 seconds     Full -    class  1 day  12 hours  30 minutes and 40 seconds     Granularity   this   answer  1   2 days     Granularity Bolton s answer  1   1 day     Granularity   this   answer  2   1 day and 13 hours     Granularity Bolton s answer  2   1 day  12 hours     Granularity   this   answer  3   1 day  12 hours and 31 minutes     Granularity Bolton s answer  3   1 day  12 hours  30 minutes     Granularity   this   answer  4   1 day  12 hours  30 minutes and 40 seconds     Granularity Bolton s answer  4   1 day  12 hours  30 minutes  40 seconds     Granularity   this   answer  5   1 day  12 hours  30 minutes and 40 seconds     Granularity Bolton s answer  5   1 day  12 hours  30 minutes  40 seconds    Seconds   563440      Full - function  6 days  12 hours  30 minutes  40 seconds     Full -    class  6 days  12 hours  30 minutes and 40 seconds     Granularity   this   answer  1   1 week     Granularity Bolton s answer  1   6 days     Granularity   this   answer  2   6 days and 13 hours     Granularity Bolton s answer  2   6 days  12 hours     Granularity   this   answer  3   6 days  12 hours and 31 minutes     Granularity Bolton s answer  3   6 days  12 hours  30 minutes     Granularity   this   answer  4   6 days  12 hours  30 minutes and 40 seconds     Granularity Bolton s answer  4   6 days  12 hours  30 minutes  40 seconds     Granularity   this   answer  5   6 days  12 hours  30 minutes and 40 seconds     Granularity Bolton s answer  5   6 days  12 hours  30 minutes  40 seconds   Seconds   604780      Full - function  6 days  23 hours  59 minutes  40 seconds     Full -    class  6 days  23 hours  59 minutes and 40 seconds     Granularity   this   answer  1   1 week     Granularity Bolton s answer  1   6 days     Granularity   this   answer  2   1 week     Granularity Bolton s answer  2   6 days  23 hours     Granularity   this   answer  3   1 week     Granularity Bolton s answer  3   6 days  23 hours  59 minutes     Granularity   this   answer  4   6 days  23 hours  59 minutes and 40 seconds     Granularity Bolton s answer  4   6 days  23 hours  59 minutes  40 seconds     Granularity   this   answer  5   6 days  23 hours  59 minutes and 40 seconds     Granularity Bolton s answer  5   6 days  23 hours  59 minutes  40 seconds   Seconds   2419180      Full - function  3 weeks  6 days  23 hours  59 minutes  40 seconds     Full -    class  3 weeks  6 days  23 hours  59 minutes and 40 seconds     Granularity   this   answer  1   4 weeks     Granularity Bolton s answer  1   3 weeks     Granularity   this   answer  2   4 weeks     Granularity Bolton s answer  2   3 weeks  6 days     Granularity   this   answer  3   4 weeks     Granularity Bolton s answer  3   3 weeks  6 days  23 hours     Granularity   this   answer  4   4 weeks     Granularity Bolton s answer  4   3 weeks  6 days  23 hours  59 minutes     Granularity   this   answer  5   3 weeks  6 days  23 hours  59 minutes and 40 seconds     Granularity Bolton s answer  5   3 weeks  6 days  23 hours  59 minutes  40 seconds   Seconds   113478160      Full - function  187 weeks  4 days  9 hours  42 minutes  40 seconds     Full -    class  187 weeks  4 days  9 hours  42 minutes and 40 seconds     Granularity   this   answer  1   188 weeks     Granularity Bolton s answer  1   187 weeks     Granularity   this   answer  2   187 weeks and 4 days     Granularity Bolton s answer  2   187 weeks  4 days     Granularity   this   answer  3   187 weeks  4 days and 10 hours     Granularity Bolton s answer  3   187 weeks  4 days  9 hours     Granularity   this   answer  4   187 weeks  4 days  9 hours and 43 minutes     Granularity Bolton s answer  4   187 weeks  4 days  9 hours  42 minutes     Granularity   this   answer  5   187 weeks  4 days  9 hours  42 minutes and 40 seconds     Granularity Bolton s answer  5   187 weeks  4 days  9 hours  42 minutes  40 seconds   I have a french translation ready  But it s fast to do the translation     just few words  Hope this could help as the other answer help me a lot

User · Answer

1 min   60  1 hour   60   60   3600  1 day   60   60   24   86400      x input  enter a positive integer          t int x       day  t  86400     hour   t- day 86400    3600     minit   t -   day 86400     hour 3600     60     seconds  t -   day 86400     hour 3600     minit 60       print  day   days    hour   hours   minit   minutes  seconds   seconds

User · Answer

This will convert n seconds into d days  h hours  m minutes  and s seconds   from datetime import datetime  timedelta  def GetTime        sec   timedelta seconds int input  Enter the number of seconds           d   datetime 1 1 1    sec      print  DAYS HOURS MIN SEC       print   d  d  d  d     d day-1  d hour  d minute  d second

User · Answer

Do it the other way around subtracting the secs as needed  and don t call it time  there s a package with that name   def sec to time        sec   int  input   Enter the number of seconds   strip           days   sec   86400     sec -  86400 days      hrs   sec   3600     sec -  3600 hrs      mins   sec   60     sec -  60 mins     print days       hrs       mins       sec

User · Answer

def convertSeconds seconds       h   seconds   60 60      m    seconds-h 60 60   60     s   seconds- h 60 60 - m 60      return  h  m  s    The function input is a number of seconds  and the return is a list of hours  minutes and seconds which that amount of seconds represent

User · Answer

This tidbit is useful for displaying elapsed time to varying degrees of granularity   I personally think that questions of efficiency are practically meaningless here  so long as something grossly inefficient isn t being done   Premature optimization is the root of quite a bit of evil   This is fast enough that it ll never be your choke point   intervals           weeks   604800      60   60   24   7       days   86400        60   60   24       hours   3600        60   60       minutes   60         seconds   1          def display time seconds  granularity 2       result           for name  count in intervals          value   seconds    count         if value              seconds -  value   count             if value    1                  name   name rstrip  s               result append         format value  name       return      join result  granularity       and this provides decent output   In  52   display time 1934815  Out 52    3 weeks  1 day   In  53   display time 1934815  4  Out 53    3 weeks  1 day  9 hours  26 minutes

User · Answer

Patching Mr B s answer  sorry  not enough rep  to comment   we can return variable granularity based on the amount of time  For example  we don t say  1 week  5 seconds   we just say  1 week    def display time seconds  granularity 2       result           for name  count in intervals          value   seconds    count         if value              seconds -  value   count             if value    1                  name   name rstrip  s               result append         format value  name           else                Add a blank if we re in the middle of other values             if len result   gt  0                  result append None      return      join  x for x in result  granularity  if x is not None     Some sample input   for diff in  5  67  3600  3605  3667  24 60 60  24 60 60 5  24 60 60 57  24 60 60 3600  24 60 60 3667  2 24 60 60  2 24 60 60 5 60 60  7 24 60 60  7 24 60 60   24 60 60       print  For  d seconds   s     diff  display time diff  2        returns this output   For 5 seconds  5 seconds For 67 seconds  1 minute  7 seconds For 3600 seconds  1 hour For 3605 seconds  1 hour For 3667 seconds  1 hour  1 minute For 86400 seconds  1 day For 86405 seconds  1 day For 86457 seconds  1 day For 90000 seconds  1 day  1 hour For 90067 seconds  1 day  1 hour For 172800 seconds  2 days For 190800 seconds  2 days  5 hours For 604800 seconds  1 week For 691200 seconds  1 week  1 day

User · Answer

I m not entirely sure if you want it  but I had a similar task and needed to remove a field if it is zero  For example  86401 seconds would show  1 days  1 seconds  instead of  1 days  0 hours  0 minutes  1 seconds   THe following code does that   def secondsToText secs       days   secs  86400     hours    secs - days 86400   3600     minutes    secs - days 86400 - hours 3600   60     seconds   secs - days 86400 - hours 3600 - minutes 60     result        days    format days  if days else                  hours    format hours  if hours else                  minutes    format minutes  if minutes else                  seconds    format seconds  if seconds else         return result   EDIT  a slightly better version that handles pluralization of words   def secondsToText secs       days   secs  86400     hours    secs - days 86400   3600     minutes    secs - days 86400 - hours 3600   60     seconds   secs - days 86400 - hours 3600 - minutes 60     result      0  day 1     format days   s  if days  1 else     if days else                0  hour 1     format hours   s  if hours  1 else     if hours else                0  minute 1     format minutes   s  if minutes  1 else     if minutes else                0  second 1     format seconds   s  if seconds  1 else     if seconds else         return result   EDIT2  created a gist that does that in several languages

User · Answer

def normalize seconds seconds  int  - gt  tuple       days  remainder    divmod seconds  86400       hours  remainder    divmod remainder  3600       minutes  seconds    divmod remainder  60       return namedtuple        days    hours    minutes    seconds    days  hours  minutes  seconds

User · Answer

def seconds to dhms time       seconds to minute     60     seconds to hour       60   seconds to minute     seconds to day        24   seconds to hour      days        time    seconds to day     time        seconds to day      hours       time    seconds to hour     time        seconds to hour      minutes     time    seconds to minute     time        seconds to minute      seconds   time      print   d days   d hours   d minutes   d seconds     days  hours  minutes  seconds     time   int input  Enter the number of seconds      seconds to dhms time    Output  Enter the number of seconds  2434234232  Result   28174 days  0 hours  10 minutes  32 seconds

User · Answer

To convert seconds  as string  into datetime  this could also help  You get number of days and seconds  Seconds can be further converted into minutes and hours   from datetime import datetime  timedelta sec   timedelta seconds  int input  Enter the number of seconds        time   str sec

User · Answer

seconds in day   86400 seconds in hour   3600 seconds in minute   60  seconds   int input  Enter a number of seconds       days   seconds    seconds in day seconds   seconds -  days   seconds in day   hours   seconds    seconds in hour seconds   seconds -  hours   seconds in hour   minutes   seconds    seconds in minute seconds   seconds -  minutes   seconds in minute   print   0  0f  days   1  0f  hours   2  0f  minutes   3  0f  seconds   format      days  hours  minutes  seconds

User · Answer

At first glance  I figured divmod would be faster since it s a single statement and a built-in function  but timeit seems to show otherwise  Consider this little example I came up with when I was trying to figure out the fastest method for use in a loop that continuously runs in a gobject idle add splitting a seconds counter into a human readable time for updating a progress bar label   import timeit  def test1 x y  dropy       while x  gt  0          y -  dropy         x -  1            the test         minutes    y-x    60         seconds    y-x    60 0  def test2 x y  dropy       while x  gt  0          y -  dropy         x -  1            the test         minutes  seconds   divmod  y-x   60   x   55       litte number  also number of tests y   10000    make y  gt  x by factor of drop dropy   7   y is reduced this much each iteration  for variation  print  division and modulus    timeit timeit  lambda  test1 x y dropy    print  divmod function         timeit timeit  lambda  test2 x y dropy      The built-in divmod function seems incredibly slower compared to using the simple division and modulus   division and modulus  12 5737669468 divmod function  17 2861430645

User · Answer

Although divmod   has been mentioned  I didn t see what I considered to be a nice example  Here s mine   q 972021 0000    For example days   divmod q  86400     days 0    whole days and   days 1    seconds remaining after those days hours   divmod days 1   3600  minutes   divmod hours 1   60  print   i days   i hours   i minutes   i seconds     days 0   hours 0   minutes 0   minutes 1     Which outputs    11 days  6 hours  0 minutes  21 seconds

[python] Python function to convert seconds into minutes, hours, and days

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