Que fait Timestamp Converter ?
Timestamp Converter permet de convertir des données ou des fichiers dans le navigateur et présente clairement le résultat et ses limites. Fonctions vérifiées : Seconds through nanoseconds, UTC ISO 8601, IANA time zones, Date-to-epoch conversion.
Store instants; choose zones for display
Use Unix time or offset-bearing ISO 8601 for an instant. Apply an IANA time zone only when presenting that instant as a regional wall time.
Comment l’utiliser ?
- Paste a timestamp and keep Auto-detect or choose its exact unit.
- Select the time zone used for the readable display.
- Copy the ISO 8601, Unix-second, or millisecond value required by the target system.
Exemple réel d’entrée et de sortie
Convert Unix zero
Entrée
0 secondsSortie
1970-01-01T00:00:00.000ZUnix time zero is the UTC epoch; local displays apply their zone offset to the same instant.
Erreurs fréquentes et corrections
| Symptôme | Cause probable | Correction |
|---|---|---|
| The year is far in the future. | A millisecond value was interpreted as seconds. | Choose Milliseconds or use Auto-detect on the complete value. |
| The displayed hour differs between systems. | The systems use different time zones or one input lacks an offset. | Compare ISO 8601 UTC output and specify the intended IANA zone. |
Unit and zone assumptions change the display
Limite propre à cet outil : Treating milliseconds as seconds creates a date far outside the expected year. A local date can also shift when one system assumes UTC and another omits the offset.
Normes et références d’implémentation
- MDN — Date (opens in a new tab)Documents JavaScript epoch milliseconds and date conversion.
- MDN — Intl.DateTimeFormat (opens in a new tab)Documents IANA time-zone formatting.
Timestamp Converter — FAQ
How are units detected?
Up to 10 digits is seconds, up to 13 milliseconds, up to 16 microseconds, and longer values nanoseconds.
Does time zone change a timestamp?
No. It changes only the displayed local representation of the same instant.
Is daylight saving time included?
Yes when the browser has current IANA time-zone data.
Quelles modifications ?
Mise à jour substantielle : Timestamp Converter: Added automatic unit detection, bidirectional conversion, ISO 8601 output, selected IANA zones, and relative time.