A free API for every time zone.

Fetch in-depth information about time zones, such as human-friendly names, UTC offsets, and daylight saving periods.

GETapi.savvycal.com/v1/time_zones/America/Chicago

{
  "abbreviation": "CDT",
  "aliases": [
    "US/Central"
  ],
  "canonical": true,
  "dst": true,
  "formatted_offset": "-05:00",
  "generic_long_name": "Central Time",
  "golden": true,
  "id": "America/Chicago",
  "legacy": false,
  "long_name": "Central Daylight Time",
  "metazone": {
    "long": {
      "current": "Central Daylight Time",
      "daylight": "Central Daylight Time",
      "generic": "Central Time",
      "standard": "Central Standard Time"
    },
    "name": "America_Central",
    "short": {
      "current": "CDT",
      "daylight": "CDT",
      "generic": "CT",
      "standard": "CST"
    },
    "territories": [
      "001"
    ]
  },
  "offset": -18000,
  "offset_std": 3600,
  "offset_utc": -21600,
  "period": {
    "from": "2026-03-08T03:00:00-05:00",
    "until": "2026-11-01T02:00:00-06:00"
  },
  "windows_zone": {
    "name": "Central Standard Time"
  }
}

Time zone

Central Time

Central TimeUTC-05:00
Eastern TimeUTC-04:00
Pacific TimeUTC-07:00
Greenwich Mean TimeUTC+01:00
Central European TimeUTC+02:00
Australian Eastern TimeUTC+11:00

Everything you need to know about time zones

We combine the IANA Time Zone Database with the Unicode CLDR to describe every zone the way people talk about it, not just by its identifier.

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Human-friendly names: Long, generic, and short names from the Unicode CLDR, like Central Time and CDT.
UTC offsets: The current UTC offset, ready to display, alongside the standard offset in seconds.
Daylight saving periods: Whether daylight saving time is in effect, and when the current period starts and ends.
Aliases and Windows names: Windows zone names and IANA aliases, like US/Central, mapped to one canonical zone.