Every IANA time zone, with the time in it now

All 419 time zone identifiers this site resolves, grouped by region, each with its local time at this instant, its offset from UTC and the abbreviation it is actually using. It is 10:45 am UTC as this page was served. Between them these zones cover 37 distinct clock readings, 131 of them are moving their clocks at some point this year, and 15 sit on an offset that is not a whole number of hours.

What an IANA identifier is

An identifier like America/New_York names a region whose clocks have agreed with each other since 1970, and it is the key into a database of every rule those clocks have followed and every change since. It is not an offset. The offset is what you get by asking the identifier a question at a particular instant, and the answer moves: for New York it changes on the second Sunday of March and changes back on the first Sunday of November.

That is why an identifier is the thing to store. A row holding UTC-5 cannot tell you whether it meant New York in winter or Bogota all year, and it cannot survive a government changing the rule. A row holding America/New_York can answer both, and keeps answering correctly after the change.

How the names are built

The first segment is an area, usually a continent or an ocean, and the second is the largest city in the zone at the time the entry was created. That is a naming convention rather than a claim about importance, and it is why several zones are named for cities that are not capitals. A few entries carry a third segment, America/Argentina/Buenos_Aires, America/Indiana/Indianapolis, America/North_Dakota/Center, where a country subdivision needed its own rule.

The database also keeps old names alive as links, so Asia/Calcutta and Asia/Kolkata both resolve. This site publishes one page per zone, under the modern name, and the older name reaches the same page rather than a second copy of it.

Offsets in use right now

37 different readings across 419 identifiers, from UTC-11 to UTC+14. The spread between the two ends is 25 hours, which is more than a day: the calendar date is not the same everywhere at any instant, and that is a normal state of affairs rather than an edge case.

Time zones in Africa

52 identifiers filed under Africa, spread across 4 different clock readings at this instant.

Time zones in the Americas

143 identifiers filed under America, spread across 11 different clock readings at this instant.

Time zones in Antarctica

11 identifiers filed under Antarctica, spread across 8 different clock readings at this instant.

Time zones in the Arctic

1 identifier filed under Arctic, all of them at UTC+2 right now.

Time zones in Asia

83 identifiers filed under Asia, spread across 15 different clock readings at this instant.

Time zones in the Atlantic

10 identifiers filed under Atlantic, spread across 5 different clock readings at this instant.

Time zones in Australia

11 identifiers filed under Australia, spread across 5 different clock readings at this instant.

Time zones in the fixed-offset group

1 identifier filed under Etc, all of them at UTC+0 right now.

Time zones in Europe

58 identifiers filed under Europe, spread across 4 different clock readings at this instant.

Time zones in the Indian Ocean

11 identifiers filed under Indian, spread across 6 different clock readings at this instant.

Time zones in the Pacific

38 identifiers filed under Pacific, spread across 14 different clock readings at this instant.

Questions

How many time zones are there?

419 identifiers in the database this site resolves, covering 37 distinct clock readings at this instant. The two numbers differ because many zones share an offset today while carrying different rules for tomorrow.

What time is it in UTC right now?

10:45 UTC, Friday, September 25, 2026. Every other time on this page is that same instant read on a different clock.

Which time zones are not a whole number of hours from UTC?

15 of them at this instant, including America/St_Johns, Asia/Colombo, Asia/Kabul, Asia/Kathmandu, Asia/Kolkata. Half hour and 45 minute offsets exist because a country set its clock to its own meridian rather than to the nearest hour line.

Why do two zones with the same offset have separate identifiers?

Because they have disagreed in the past or may disagree in future. The database keys on the history of the clock, not on today's reading, so two zones that match this week keep separate entries if either one has ever moved independently.

Where else to look