Adding days to a date in Python

Question

I have a date  10 10 11 m-d-y   and I want to add 5 days to it using a Python script  Please consider a general solution that works on the month ends also   I am using following code   import re from datetime import datetime  StartDate    10 10 11   Date   datetime strptime StartDate    m  d  y     print Date -  is printing  2011-10-10 00 00 00   Now I want to add 5 days to this date  I used the following code   EndDate   Date today   timedelta days 10    Which returned this error   name  timedelta  is not defined

User · Answer

using timedeltas you can do   import datetime today datetime date today     time datetime time   print  today    today     One day different   five day datetime timedelta days 5  print  one day    five day   output - 1 day   00 00 00     five day extend   fitfthday today five day print  fitfthday  fitfthday      five day extend   fitfthday today five day print  fitfthday  fitfthday   output -  today   2019-05-29 one day   5 days  0 00 00 fitfthday 2019-06-03

User · Answer

If you happen to already be using pandas  you can save a little space by not specifying the format   import pandas as pd startdate    10 10 2011  enddate   pd to datetime startdate    pd DateOffset days 5

User · Answer

In order to have have a less verbose code  and avoid name conflicts between datetime and datetime datetime  you should rename the classes with CamelCase names   from datetime import datetime as DateTime  timedelta as TimeDelta   So you can do the following  which I think it is clearer   date 1   DateTime today    end date   date 1   TimeDelta days 10    Also  there would be no name conflict if you want to import datetime later on

User · Answer

Import timedelta and date first   from datetime import timedelta  date   And date today   will return today s datetime  may be you want   EndDate   date today     timedelta days 10

User · Answer

I guess you are missing something like that   from datetime import timedelta

User · Answer

This might help  from datetime import date  timedelta date1   date 2011  10  10  date2   date   timedelta days 5  print  date2

User · Answer

Generally you have got an answer now but maybe my class I created will be also helpfull  For me it solves all my requirements I have ever had in my Pyhon projects   class GetDate      def   init   self  date  format   Y- m- d            self tz   pytz timezone  Europe Warsaw            if isinstance date  str               date   datetime strptime date  format           self date   date astimezone self tz       def time delta days self  days           return self date   timedelta days days       def time delta hours self  hours           return self date   timedelta hours hours       def time delta seconds self  seconds           return self date   timedelta seconds seconds       def get minimum time self           return datetime combine self date  time min  astimezone self tz       def get maximum time self           return datetime combine self date  time max  astimezone self tz       def get month first day self           return datetime self date year  self date month  1  astimezone self tz       def current self           return self date      def get month last day self           lastDay   calendar monthrange self date year  self date month  1          date   datetime self date year  self date month  lastDay          return datetime combine date  time max  astimezone self tz    How to use it   self tz   pytz timezone  Europe Warsaw   - here you define Time Zone you want to use in project GetDate  2019-08-08   current   - this will convert your string date to time aware object with timezone you defined in pt 1  Default string format is format   Y- m- d  but feel free to change it   eg  GetDate  2019-08-08 08 45   format   Y- m- d  H  M   current    GetDate  2019-08-08   get month first day   returns given date  string or object  month first day GetDate  2019-08-08   get month last day   returns given date month last day GetDate  2019-08-08   minimum time   returns given date day start GetDate  2019-08-08   maximum time   returns given date day end GetDate  2019-08-08   time delta days  number of days   returns given date   add  number of days   you can also call  GetDate timezone now    time delta days -1  for yesterday  GetDate  2019-08-08   time delta haours  number of hours   similar to pt 7 but working on hours GetDate  2019-08-08   time delta seconds  number of seconds   similar to pt 7 but working on seconds

User · Answer

If you want add days to date now  you can use this code  from datetime import datetime from datetime import timedelta   date now more 5 days    datetime now     timedelta days 5    strftime   Y- m- d

User · Answer

Here is a function of getting from now   specified days  import datetime  def get date dateFormat   d- m- Y   addDays 0        timeNow   datetime datetime now       if  addDays  0           anotherTime   timeNow   datetime timedelta days addDays      else          anotherTime   timeNow      return anotherTime strftime dateFormat    Usage   addDays   3  days output format     d- m- Y  output   get date output format  addDays  print output

User · Answer

The previous answers are correct but it s generally a better practice to do   import datetime   Then you ll have  using datetime timedelta   date 1   datetime datetime strptime start date    m  d  y    end date   date 1   datetime timedelta days 10

User · Answer

Sometimes we need to use searching by from date  amp  to date  If we use date  range then we need to add 1 day to to date otherwise queryset will be empty  Example  from datetime import timedelta    from date    parse date request POST  from date     to date      parse date request POST  to date      timedelta days 1   attendance list   models DailyAttendance objects filter attdate  range    from date  to date

User · Answer

Here is another method to add days on date using dateutil s relativedelta  from datetime import datetime from dateutil relativedelta import relativedelta  print  Today    datetime now   strftime   d  m  Y  H  M  S    date after month   datetime now    relativedelta days 5  print  After 5 Days    date after month strftime   d  m  Y  H  M  S    Output   Today   25 06 2015 15 56 09 After 5 Days  30 06 2015 15 56 09

[python] Adding days to a date in Python

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