you could get the country where the request is being made from, get the timezone for that country, and apply the hours offset to your time

1) get the ip from the client  $_SERVER['REMOTE_ADDR']
2) get the country of that IP, using GeoIP library or a web service such as Maxmind
3) get the difference in hours (offset) for this country  (DateTime::getOffset  -  GeoIP::geoip_time_zone_by_country_and_region())
4) add/sustract the offset to your date with DateTime class (DateTime::add()) 

• How to convert Y-m-d H:i:s to Y-m-d in PHP?

  How to convert Y-m-d H:i:s to Y-m-d in PHP? I have e.g. $date = "2011-08-10 20:40:12"; and would like to convert it to just $output = "2011-08-10"; Thanks in advance.

• How to input the current time into a mysql table from PHP

  I'm using a mysql_query() in PHP to insert a value into a table in a database. One of the attributes of that table is "timestamp" which is supposed to be the current time that the query was made. Ho…

• If I have a PHP string in the format YYYY-DD-MM and a timestamp in MySQL, is there a good way to convert between them?

  I'm interested in doing comparisons between the date string and the MySQL timestamp. However, I'm not seeing an easy conversion. Am I overlooking something obvious?

• How do I convert between time formats?

  I am looking to convert a mysql timestamp to a epoch time in seconds using php, and vice versa. What's the cleanest way to do this?

• Get date format like "Y-m-d H:i:s" from a php date

  did someone knows a way to get a string from date that contains the format of the date? <?php $date = date ("2009-10-16 21:30:45"); // smething like this? print date_format ($date); ?&g…

• Time completion in working hours

  Okay, not so much a programming problem, but I can only seem to think of really complicated methods to solve this. There is a script we run in the office. We need to determine how long this scrip…

• Comparing date("Y-m-d h:i:s");

  how can I make a conditional statement like if date("Y-m-d h:i:s"); is more than 30 seconds after date("Y-m-d h:i:s");. I've previously used something like date("Y-m-d h:i:s"); < date("Y-m-d h…

• MySQL SELECT NOW() and PHP date('Y-m-d H:i:s') are different

  I am on VPS Clound hosting and the difference between MySQL SELECT NOW() and PHP date('Y-m-d H:i:s') is 4 hours. What is the problem?

• MYSQL: Convert Timestamp --> Time

  I have this MYSQL Table: [ID] [TIMESTAMP] [TIME] [1] [2010-05-29 01:17:35] [] [1] [2010-05-29 01:23:42] [] ... and so on Now I need to copy the TIMESTAMP value into the TIME rows. The new …

• How do I extract the number of seconds elapsed from a specific date?

  I want my clients to be able to ask a question on my website, and after 4 days, for that question to be deleted. Everytime that question is visited, for the time elapsed since the question was a…