Time Zone Converter
Convert any time between major world time zones.
This tool is for informational and educational purposes only. It is not a substitute for professional financial, medical, legal, or engineering advice. See Terms of Service.
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Request a ToolHow to Use the Time Zone Converter
Enter a time, select your starting time zone, select the destination time zone, and the converted time appears instantly.
- Enter the time. Use the 24-hour time picker.
- Select the source time zone. Choose the zone the time is currently in using the UTC offset.
- Select the destination time zone. Choose where you want to convert the time to.
- Read the result. The converted time shows in 12-hour format. If the conversion crosses midnight, a "Next day" or "Previous day" indicator appears.
About the Time Zone Converter
This converter uses UTC offsets (the number of hours ahead of or behind Coordinated Universal Time) to perform conversions. It supports standard fixed offsets for major zones worldwide. Note that daylight saving time changes the UTC offset for many regions: for example, New York is UTC-5 in winter (Eastern Standard Time) and UTC-4 in summer (Eastern Daylight Time).
For conversions involving DST, check which offset applies on your specific date. The converter uses the offset you select, so choose the correct offset for the time of year.
Frequently Asked Questions
What is UTC and how does it relate to time zones?
UTC (Coordinated Universal Time) is the primary time standard for the world and serves as the reference from which all other time zones are measured. Time zones are expressed as offsets from UTC. New York in winter is UTC-5, meaning it is 5 hours behind UTC. Tokyo is UTC+9, meaning it is 9 hours ahead. Converting between two zones means first converting to UTC and then to the target zone.
What time is 9 AM EST in London?
9 AM Eastern Standard Time (UTC-5) is 2 PM UTC+0 in London. During British Summer Time (when London observes UTC+1), it would be 3 PM. Select UTC-5 as the source and UTC+0 as the destination to confirm. Enter 09:00 in the time field and the result will show 14:00.
How do I account for daylight saving time?
This converter uses fixed UTC offsets. During daylight saving time, regions shift their offset by 1 hour. For example, New York shifts from UTC-5 (EST) to UTC-4 (EDT) in spring. Select the correct current offset for your zone. For US time zones, standard time runs from the first Sunday in November to the second Sunday in March.
What does "next day" mean in the conversion result?
If the conversion crosses midnight forward, the destination time is on the next calendar day. For example, converting 10 PM New York time (UTC-5) to Tokyo (UTC+9) gives 12 PM the next day, because the 14-hour time difference pushes past midnight. The "Next day" indicator alerts you to this so you can account for it in scheduling.