Timezone

Get timezone information for any location by geographic coordinates or city name. Returns the IANA timezone identifier, UTC offset, current time, and DST status.

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Overview

Use Cases

Display local time for a given location
Scheduling and calendar applications
Travel and logistics platforms
Location-aware notifications

Features

Lookup by latitude/longitude or city name

IANA timezone identifiers (e.g. "America/New_York")

DST detection for the current date

UTC offset in standard +HH:MM format

150+ major cities supported for city-based lookup

API Endpoints

Get Timezone

Returns timezone information for the given coordinates or city name. Provide either `city` or both `lat` and `lon`.

GET

https://api.requiems.xyz/v1/places/timezone

Parameters

Name	Type	Required	Description
lat	`float`	Optional	Latitude of the location (-90 to 90). Required when using coordinate-based lookup.
lon	`float`	Optional	Longitude of the location (-180 to 180). Required when using coordinate-based lookup.
city	`string`	Optional	City name for city-based lookup (e.g. 'Tokyo', 'London'). Required when not using coordinates.

Try it out

Live Demo

Request

lat (float)

Latitude of the location (-90 to 90). Required when using coordinate-based lookup.

lon (float)

Longitude of the location (-180 to 180). Required when using coordinate-based lookup.

city (string)

City name for city-based lookup (e.g. 'Tokyo', 'London'). Required when not using coordinates.

Response Fields

Field	Type	Description
timezone	`string`	IANA timezone identifier (e.g. "Europe/London", "Asia/Tokyo")
offset	`string`	UTC offset in +HH:MM or -HH:MM format (e.g. '+05:30', '-05:00')
current_time	`string`	Current time in UTC, formatted as RFC 3339 (e.g. "2024-12-15T14:30:00Z")
is_dst	`boolean`	Whether the location is currently observing daylight saving time

Code Examples

# Lookup by coordinates
curl "https://api.requiems.xyz/v1/places/timezone?lat=51.5&lon=-0.1" \
  -H "requiems-api-key: YOUR_API_KEY"

# Lookup by city
curl "https://api.requiems.xyz/v1/places/timezone?city=Tokyo" \
  -H "requiems-api-key: YOUR_API_KEY"

import requests

# Lookup by coordinates
url = "https://api.requiems.xyz/v1/places/timezone"
headers = {"requiems-api-key": "YOUR_API_KEY"}

response = requests.get(url, params={"lat": 51.5, "lon": -0.1}, headers=headers)
print(response.json())

# Lookup by city
response = requests.get(url, params={"city": "Tokyo"}, headers=headers)
print(response.json())

// Lookup by coordinates
const response = await fetch(
  'https://api.requiems.xyz/v1/places/timezone?lat=51.5&lon=-0.1',
  { headers: { 'requiems-api-key': 'YOUR_API_KEY' } }
);
const data = await response.json();
console.log(data.data.timezone);

// Lookup by city
const cityResponse = await fetch(
  'https://api.requiems.xyz/v1/places/timezone?city=Tokyo',
  { headers: { 'requiems-api-key': 'YOUR_API_KEY' } }
);
const cityData = await cityResponse.json();
console.log(cityData.data.timezone);

require 'net/http'
require 'json'

# Lookup by coordinates
uri = URI('https://api.requiems.xyz/v1/places/timezone')
uri.query = URI.encode_www_form(lat: 51.5, lon: -0.1)

request = Net::HTTP::Get.new(uri)
request['requiems-api-key'] = 'YOUR_API_KEY'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end

data = JSON.parse(response.body)
puts data['data']['timezone']

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