Time Zone Converter
Convert a local time in one city to the local time in another. Search major cities worldwide, swap directions with one tap, and see instantly whether the date changes.
Los Angeles
10:00 AM
Sunday, August 16, 2026
UTC-7
Tokyo
2:00 AMnext day
Monday, August 17, 2026
UTC+9
Note: the date changes — it is already Monday in Tokyo.
How Does the Time Zone Converter Work?
Every location on Earth belongs to a time zone defined by the IANA time zone database — the same standard used by operating systems and airlines. When you pick a city, a date, and a time, TravelCalc looks up that zone's exact UTC offset for that moment (including daylight saving rules), converts your input to a universal timestamp, and then renders it in the destination zone.
This matters for travelers because offsets are not fixed. Los Angeles is UTC-8 in winter but UTC-7 in summer, while Tokyo stays at UTC+9 all year. Converting with a simple fixed number can leave you an hour off — this tool always uses the rules for the specific date you select.
Frequently Asked Questions
Does the converter handle daylight saving time?
Yes. Conversions use the official IANA time zone database built into your browser, so daylight saving transitions in both locations are applied automatically for the date you choose.
Why does the date sometimes change when I convert a time?
When two locations are far apart, a morning time in one city can fall on the previous or next calendar day in the other. The converter highlights any date change so you always know which day it is at your destination.
What is a UTC offset?
A UTC offset shows how far a time zone is ahead of or behind Coordinated Universal Time (UTC). For example, UTC+9 means the location is nine hours ahead of UTC. Offsets can change during the year if a region observes daylight saving time.
Can I convert times for a future date?
Yes. Pick any date and the converter applies the correct offsets for that specific date, including scheduled daylight saving changes.
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