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Time zone converter.
Convert time between any two time zones. Select a source and destination timezone below, or pick one of the popular conversions.
Adjust the time. Digits roll like an odometer, and the swap button flips the zones.
Convert a time from one zone to another with daylight saving handled for you. Pick a source zone, a target zone, and a date; the answer uses IANA time-zone rules instead of a fixed UTC shortcut.
Useful workflows
Convert a webinar, deadline, interview, game, release, or flight update from the host timezone into the timezone you actually use.
Pick the real date instead of relying on a fixed UTC offset, especially around March, October, and November clock changes.
Create a link when the converted time will be read by people in several places and you want their browser to show the local result.
Methodology
City and timezone calculations use IANA timezone identifiers where possible, so offsets follow real regional rules instead of fixed UTC shortcuts.
Daylight-saving changes are date-aware. If a region changes policy, regenerated pages pick up the updated rule set from the app data pipeline.
Live clocks depend on the visitor's device clock. They are useful for scheduling, but they are not a certified atomic-clock reference.
Saved cities, teams, and preferences stay in the browser on the same device unless you explicitly share or export them.
Data-backed checks
Timezone rules
IANA tzdb
IANA identifiers keep offsets date-aware instead of fixed to one UTC shortcut.
City records
GeoNames
GeoNames-derived records anchor city pages, search, and popular hub lists.
Freshness
Apr 30, 2026
Live values render on request; editorial/source notes carry the reviewed date.
Sources: IANA tzdb, GeoNames-derived city records, Nager.Date, OurAirports, exchange calendars, and curated event source links. Source notes
Reviewed:
Live snapshots: Current times, daylight, market states, and countdown values are rendered at request time; review dates describe the underlying content, not a guarantee that authorities, exchanges, airlines, or event organizers will not change schedules.
Tool evidence
Practical use cases
Trust boundaries
Shareable
Generate a URL collaborators can open to see the event time rendered in their own timezone automatically.
Generate a URL. Each viewer sees the event time in their local zone.
Intent
Most converter searches are concrete: 10 AM EST to GMT, 4 PM CET in PST, or whether Tokyo still overlaps with London today.
A useful converter is date-aware. Fixed-offset tools can be wrong when daylight saving changes on one side but not the other.
If you know the two abbreviations, open a pair page. If you are coordinating people, the meeting planner or compare pages usually answer the real scheduling question faster.
Popular
A four-step walkthrough for converting any time from one IANA time zone to another, with DST handled automatically.
Type the city or zone you are converting from into the From field. The picker matches IANA zone IDs and common city aliases as you type.
Type the city or zone you are converting to into the To field. The converter shows the equivalent local time as you finish typing.
Set the source date and time. The converter applies the right DST rules for that exact calendar date in both zones, so the answer is correct year-round.
Read the destination local time directly above the inputs. Use the share controls to copy a permalink that opens the same conversion for anyone you send it to.
How to convert time zones
Worked examples
Each example uses standard (non-DST) offsets so the arithmetic is clear. The note flags how daylight saving shifts the result — run the live converter above for an exact current value.
New York→London
9:00 AM in New York is 2:00 PM in London (standard time).
DST: Both cities observe daylight saving, but on different dates in March, so for about two weeks each spring the gap is 4 hours instead of 5.
Open the New York to London conversion page →San Francisco→Tokyo
4:00 PM Monday in San Francisco is 9:00 AM Tuesday in Tokyo (standard time).
DST: Japan never observes daylight saving, so when San Francisco is on daylight time the gap narrows to 16 hours from mid-March to early November.
Open the San Francisco to Tokyo conversion page →London→Sydney
10:00 AM in London is 9:00 PM in Sydney (northern winter / southern summer).
DST: Sydney and London sit in opposite hemispheres, so their daylight-saving seasons are reversed. The gap swings between 9, 10, and 11 hours across the year — this pair is the clearest case for anchoring to IANA zones rather than a fixed offset.
Open the London to Sydney conversion page →UTC→India (Mumbai)
12:00 noon UTC is 5:30 PM in India.
DST: India uses a single half-hour offset nationwide and never changes clocks, so this conversion is the same every day of the year.
Open the UTC to India (Mumbai) conversion page →Common pitfalls
When clocks turn back in autumn, one local hour occurs twice. A plain local time in that window — say 1:30 AM on the changeover night — does not identify a single instant. Schedule in UTC, or keep the IANA zone attached, so the ambiguity resolves.
In spring, clocks jump ahead and one local hour never happens at all. A meeting set for 2:30 AM on that date in that region is not a real time. The converter skips the gap automatically; a manual offset calculation will not.
A weekly call fixed in one city's clock will appear to move in every other city for the weeks when DST schedules are out of sync. Confirm the time on each side around mid- March and late October, the busiest transition windows.
The common thread: a bare offset or a remembered hour gap loses the rules. The converter avoids every pitfall above by reading each region's real schedule from the IANA tz database.
FAQ
People also ask
How do I figure out what time it is in another city?
Does this work with daylight saving time?
Can I share a converted time as a link?
What's the easiest way to convert UTC to my local time?
When to use what
Use a converter for one timestamp: what is this clock reading over there? Use compare pages for city context such as holidays, weather, and overlap patterns.
Use the meeting planner when several people or regions need a fair working-hour window.
Reference fields include the source-to-UTC-to-destination conversion model, daylight-saving pitfalls (the repeated fall-back hour and the missing spring-forward hour), the 26-hour offset range, fractional offsets, and the worked example city pairs.
