Timezone by Coordinates API
Get the IANA time zone for any latitude/longitude, with the current local time, UTC offset, abbreviation and whether daylight saving time is active. Optionally pass a datetime to get the offset at that moment.
Authentication & base URL
Subscribe through one of our marketplace listings; your marketplace API key and base URL are shown there. All endpoints return JSON over HTTPS, served from a global edge network (typically 20–150 ms).
Endpoints
GET /v1/timezone/by-coordinates
Time zone for coordinates
| Parameter | In | Description | Example |
|---|---|---|---|
lat * | query | Latitude | 40.4168 |
lon * | query | Longitude | -3.7038 |
datetime | query | ISO 8601 instant to evaluate (default: now) | 2026-07-01T12:00:00Z |
Example
GET /v1/timezone/by-coordinates?lat=40.4168&lon=-3.7038&datetime=2026-07-01T12%3A00%3A00Z
{
"lat": 40.4168,
"lon": -3.7038,
"timezone": "Europe/Madrid",
"localTime": "2026-07-01T14:00:00",
"utcOffset": "+02:00",
"utcOffsetMinutes": 120,
"abbreviation": "GMT+2",
"isDst": true,
"utc": "2026-07-01T12:00:00.000Z",
"unix": 1782907200
}Get the IANA time zone for any latitude/longitude, with the current local time, UTC offset, abbreviation and whether daylight saving time is active. Optionally pass a datetime to get the offset at that moment.
Use cases
Scheduling across regions, showing local time for a map pin, logistics and delivery ETAs, IoT devices that only know their GPS position, normalising timestamps in datasets.
Why this API
- Fast: global edge network, answers in milliseconds.
- Works offline at the edge: no third-party calls, no rate limits from upstream providers.
- Covers land and sea (ocean zones fall back to Etc/GMT offsets).
- Boundary data: tz-lookup (CC0, public domain).
- Fair pricing: Free plan 500 requests/month, Pro 25,000 for $4.99, Ultra 150,000 for $14.99.
Support
Questions or a feature you need? Open a thread in the Discussions tab.
Pricing
Free plan with 500 calls per month, then Pro (25,000 calls for $4.99/month) and Ultra (150,000 calls for $14.99/month). See all plans.