Timezone Conversion API

About this tool

Convert any datetime from one IANA timezone to another. Accepts ISO 8601 strings or Unix timestamps as input. Returns ISO, Unix, or human-readable output. Uses Node.js native Intl — no external API calls, instant response.

Quick Start

curl -X POST "https://api.iteratools.com/time/convert" \
  -H "Authorization: Bearer YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "datetime": "2026-03-27T17:00:00",
    "from_tz": "UTC",
    "to_tz": "America/Sao_Paulo",
    "format": "iso"
  }'

Response

{
  "input": { "datetime": "2026-03-27T17:00:00", "timezone": "UTC" },
  "output": {
    "datetime": "2026-03-27T14:00:00-03:00",
    "timezone": "America/Sao_Paulo",
    "utc_offset": "-03:00",
    "display": "March 27, 2026, 2:00:00 PM (America/Sao_Paulo)"
  },
  "utc": "2026-03-27T17:00:00.000Z"
}

Parameters

datetime	required — ISO 8601 string or Unix timestamp integer
from_tz	required — Source IANA timezone (e.g. `UTC`, `America/New_York`)
to_tz	required — Target IANA timezone (e.g. `America/Sao_Paulo`, `Asia/Tokyo`)
format	optional — `iso` (default), `unix` (epoch seconds), `human` (readable string)

Details

Endpoint	POST /time/convert
Timezones list	GET /time/timezones
Price	$0.001 / conversion
Auth	Bearer token or x402 micropayment
Base URL	https://api.iteratools.com

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