Convert time zones
Timezone Convertidor (JST/UTC and IANA time zones)
Convert a date-time between JST, UTC, and any IANA time zone. Resultadoados update instantly, with date rollovers and copy-friendly formats.
Convert time zones
Enter a date-time and convert it to another time zone in real time.
Converted result
Compartir this conversion
Copiar a URL with the current state.
Historial (last 5)
A?n no hay historial.
Batch convert (multiple lines)
One date-time per line. If no time zone is specified, the input time zone is used.
Batch results
Opciones
What you can do
- JST ↔ UTC conversion
- Convert between IANA time zones (e.g., Asia/Tokyo)
- Highlight date rollovers
- Batch conversion for multiple lines
How to use (3 steps)
- •Choose the input time zone.
- •Enter the date and time.
- •Copiar the output format you need.
Common examples
Notas & tips
Using IANA zones (e.g., America/New_York) automatically applies DST rules for that date.
Resultadoados rely on the timezone data in your browser/OS and may differ across environments.
JST, PST, etc. may refer to multiple regions. Prefer IANA names for accuracy.
FAQ
How is DST handled?
If you specify an IANA time zone (e.g., America/New_York), DST is applied automatically for the selected date. Resultadoados can depend on your browser's timezone data.
Will I see date rollovers?
S?. If the output date differs from the input date, a badge indicates previous/next day.
Can I convert multiple lines at once?
S?. Use batch conversion to process one date-time per line and copy as CSV/TSV.
Is JST always UTC+9?
In practice, JST is operated as UTC+9 year-round.
How do I paste the result into a meeting invite?
Use the Display or ISO copy buttons depending on whether it's for humans or systems.