Time Zone Calculator
Convert a date and time between different time zones and quickly compare local times around the world.
How to Use the Time Zone Calculator
Select the date and time you want to convert, choose the time zone where that time occurs, and then select the destination time zone.
The calculator accounts for daylight saving time where applicable, based on the selected time zones and date.
Why Time Zones Change
Different parts of the world use different local times based on their geographic location and time-zone rules. Some regions also observe daylight saving time, which can change their UTC offset during part of the year.
Common Time Zone Abbreviations
- ET — Eastern Time
- CT — Central Time
- MT — Mountain Time
- PT — Pacific Time
- GMT — Greenwich Mean Time
- CET — Central European Time
- IST — India Standard Time
- JST — Japan Standard Time
Frequently Asked Questions
How do I convert New York time to London time?
Select New York as the source time zone and London as the destination time zone. The calculator will determine the corresponding London time for the selected date.
Does the calculator account for daylight saving time?
Yes. The conversion uses the selected date so that applicable daylight saving time rules can be taken into account.
Can I convert times between Casablanca and other cities?
Yes. Casablanca is included as one of the available time zones.