Guide1 min readUpdated July 1, 2026
How to convert between time zones
Short answer
Convert the source time to UTC by subtracting its offset, then add the target zone's offset. A time zone converter does this for you and accounts for daylight saving, which is the easiest way to avoid errors.
Use UTC as the anchor
Every time zone is defined as an offset from UTC. The reliable way to convert is to go through UTC: from the source time, remove its offset to get UTC, then apply the target offset. See what is UTC.
New York 15:00 (UTC-4) -> UTC 19:00
UTC 19:00 -> London (UTC+1) -> 20:00Convert a time
- Pick the source zone and timeEnter the time as it is in the originating region.
- Pick the target zoneChoose where you need the equivalent local time.
- Read the resultThe converter applies both offsets, including daylight saving.
Try it: Time Zone ConverterConvert a time between zones with daylight saving handled for you.Open tool
Daylight saving breaks fixed offsetsMany regions shift their offset by an hour part of the year, and they switch on different dates. A memorized offset can be wrong for months, so rely on a converter that knows the rules.
Scheduling across regions
- Agree on times in UTC for meetings that span countries
- State the zone explicitly (09:00 ET), never just the number
- Double-check around DST change dates, which differ by region
- For recurring events, confirm each side after any clock change