Convert UTC dates to local time in PHP

Question

I m storing the UTC dates into the DB using    utc   gmdate  M d Y h i s A      and then I want to convert the saved UTC date to the client s local time    How can I do that   Thanks

User · Answer

UTC Time      2018-07-06 06 06 16   echo  UTC Time    UTC Time   Indian Time   TimeConverion  UTC Time   echo   lt br gt  Indian Time    Indian Time   function TimeConverion  UTC Time      date default timezone set  Europe London       sTime   date  Y-m-d h i sa       ts3   strtotime date  G i s   -strtotime  sTime       utc   explode      UTC Time      time   strtotime  utc 1      date default timezone set  Asia Calcutta       time     ts3      Add the difference   return  utc 0      date  H i s    time

User · Answer

PHP s strtotime function will interpret timezone codes  like UTC   If you get the date from the database client without the timezone code  but know it s UTC  then you can append it   Assuming you get the date with timestamp code  like  Fri Mar 23 2012 22 23 03 GMT-0700  PDT    which is what Javascript code     new Date    gives     time   strtotime  dateWithTimeZone    dateInLocal   date  Y-m-d H i s    time     Or if you don t  which is likely from MySQL  then    time   strtotime  dateInUTC   UTC     dateInLocal   date  Y-m-d H i s    time

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I store date in the DB in UTC format but then I show them to the final user in their local timezone     retrieve  d    new  DateTime  val     UTC   - gt format  U    return date  Y-m-d H i s    d

User · Answer

Here I am sharing the script  convert UTC timestamp to Indian timestamp -         create a  utc object with the UTC timezone      IST   new DateTime  2016-12-12 12 12 12   new DateTimeZone  UTC             change the timezone of the object without changing it s time      IST- gt setTimezone new DateTimeZone  Asia Kolkata             format the datetime    echo  IST- gt format  Y-m-d H i s T

User · Answer

Here is a straight way to convert the UTC time of the questioner to local time  This is for a stored time in a database etc   i e  any time  You just have to find the time difference between UTC time and the local time you are interested in and then ajust the stored UTC time adding to it the difference      df    G i s       Use a simple time format to find the difference  ts1   strtotime date  df         Timestamp of current local time  ts2   strtotime gmdate  df       Timestamp of current UTC time  ts3    ts1- ts2                  Their difference   You can then add this difference to the stored UTC time   In my place  Athens  the difference is exactly 5 00 00   Example    time   time      Or any other timestamp  time     ts3     Add the difference  dateInLocal   date  Y-m-d H i s    time

User · Answer

Answer  Convert the UTC datetime to America Denver     create a  dt object with the UTC timezone  dt   new DateTime  2016-12-12 12 12 12   new DateTimeZone  UTC         change the timezone of the object without changing it s time  dt- gt setTimezone new DateTimeZone  America Denver         format the datetime  dt- gt format  Y-m-d H i s T      Notes  time   returns the unix timestamp  which is a number  it has no timezone   date  Y-m-d H i s T   returns the date in the current locale timezone   gmdate  Y-m-d H i s T   returns the date in UTC  date default timezone set   changes the current locale timezone  to change a time in a timezone     create a  dt object with the America Denver timezone  dt   new DateTime  2016-12-12 12 12 12   new DateTimeZone  America Denver         change the timezone of the object without changing it s time  dt- gt setTimezone new DateTimeZone  UTC         format the datetime  dt- gt format  Y-m-d H i s T      here you can see all the available timezones  https   en wikipedia org wiki List of tz database time zones  here are all the formatting options  http   php net manual en function date php  Update PHP timezone DB  in linux   sudo pecl install timezonedb

User · Answer

First  get the date in UTC -- you ve already done that so this step would really just be a database call    timezone    UTC   date default timezone set  timezone     utc   gmdate  M d Y h i s A    print  UTC      date  r   strtotime  utc       n     Next  set your local time zone in PHP    timezone    America Guayaquil   date default timezone set  timezone     And now get the offset in seconds    offset   date  Z   strtotime  utc    print  offset   offset  n     Finally  add the offset to the integer timestamp of your original datetime   print  LOCAL      date  r   strtotime  utc     offset      n

User · Answer

Given a local timezone  such as  America Denver   you can use DateTime class to convert UTC timestamp to the local date    timestamp               date   new DateTime        timestamp    date- gt setTimezone new DateTimeZone  America Denver     echo  date- gt format  Y-m-d H i s

User · Answer

date   and localtime   both use the local timezone for the server unless overridden  you can override the timezone used with date default timezone set     http   www php net manual en function date-default-timezone-set php  http   us3 php net manual en function date php  http   php net manual en function localtime php

User · Answer

Date arithmetic is not needed if you just want to display the same timestamp in different timezones    format    M d  Y h ia    timestamp   gmdate  format    date default timezone set  UTC     utc datetime   date  format   timestamp    date default timezone set  America Guayaquil     local datetime   date  format   timestamp

[php] Convert UTC dates to local time in PHP

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