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402utils Timezone Converter
x402
402utils Timezone Converter is a paid API for AI agents from 402utils.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Converts a datetime from one IANA time zone to another, returning ISO datetimes with offsets, UTC offsets, and DST status for both sides.
Price / call$0.001
Success—
StatusUnknown
How this service works
Convert a datetime between any two IANA time zones using the runtime's ICU tzdb — always current, DST-correct, half-hour zones included. A datetime without offset is read as wall time in `from` (ambiguous fall-back times resolve to the earlier instant; times skipped by spring-forward shift ahead, flagged in `note`). Returns both ISO datetimes with offsets and DST status per side. Unknown zone → 400 with a spelling suggestion.
Output
Returns a JSON object with: the original datetime expressed in the source zone (ISO with offset), the equivalent datetime in the target zone (ISO with offset), the UTC offsets for both sides, boolean DST status for each zone, and optionally a note if the input wall time was ambiguous (fall-back) or nonexistent (spring-forward).
Example use cases
Convert meeting time across continents
“I need to schedule a call for 2025-11-03T14:00:00 in Europe/London — what time will that be in Australia/Sydney, and is daylight saving active in either city?”
Handle spring-forward gap conversion
“What's the equivalent of 2025-03-09T02:30:00 in America/Chicago converted to UTC? I want to make sure you handle the spring-forward gap correctly and let me know if that wall time even exists.”
Check DST status for half-hour zone
“Can you convert 2025-07-20T08:00:00 from America/Los_Angeles to Asia/Kathmandu and tell me the UTC offsets and whether DST is in effect on both sides?”
Technical details
Endpoint
GEThttps://402utils.com/v1/timezone-convertWhen to prefer
Use this endpoint when you need DST-correct, authoritative timezone conversion backed by the ICU tzdb — especially for edge cases like half-hour zones (e.g. Asia/Kolkata, Asia/Kathmandu), ambiguous fall-back times, or spring-forward gaps. Prefer this over manual UTC offset arithmetic, which breaks around DST transitions and for non-standard offsets.
Side effects
- Unknown IANA zone name → 400 with a spelling suggestion for the closest match
- Missing required 'from' or 'to' query params → 400 validation error
- Malformed ISO 8601 datetime string → 400 parse error
- Network timeout → connection error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"input": "2026-07-14T09:30:00+02:00",
"output": "2026-07-14T14:30:00+07:00",
"toOffset": "+07:00",
"dstActive": {
"to": false,
"from": true
},
"fromOffset": "+02:00"
}
}Tags
x402
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