How it is calculated
Each city has a time zone with an offset from UTC that may change in summer in some countries. The calculator uses your browser’s time-zone database, so daylight saving for the chosen date is applied automatically.
Target time = source time − source offset + target offsetWorked example
A 10:00 meeting in Rabat (UTC+1) is 12:00 in Makkah (UTC+3), 13:00 in Dubai (UTC+4) and 4:00 in New York in winter (5:00 in summer).
Frequently asked questions
Why does the difference change during the year?
Daylight saving in some countries (Europe, North America); others such as Saudi Arabia and the UAE do not use it.
What is Morocco’s time zone?
Morocco uses UTC+1 all year, switching to UTC+0 during Ramadan.
What is UTC?
The world time reference, roughly the same as Greenwich Mean Time.