Chronograph toolkit
Date & Time made precise.
Convert zones, decode Unix epochs, and shift timelines — with a live local clock always in view.
Playground
Convert zones, decode epochs, and shift timelines live.
Optional — try the API without a key (shared tools quota). Public signup is closed during beta — learn more.
Timezone bridge
Convert between zones
Pick a moment once — see it land cleanly in another timezone.
/timezone/convert
Awaiting a moment
Pick date, time, and both zones — arrival time lands here.
Unix decode
Timestamp → date
Seconds or milliseconds since epoch, rendered in any zone.
/timezone/timestamp
Drop in an epoch
Paste a Unix value to reveal the calendar time.
Epoch encode
Date → Unix
Turn a human moment into seconds and milliseconds since 1970.
/timezone/epoch
Ready to encode
Select a date and time to mint its epoch values.
Timeline math
Add or subtract time
Shift a start moment by days, hours, minutes, and seconds.
Timeline standing by
Enter an offset to project forward or backward.
Time tools that stay accurate
Zone bridges, epoch decode/encode, and timeline math — ready for playgrounds and production APIs
Global zones
DST-aware conversions across major cities — pick a moment once and see it land cleanly elsewhere.
Epoch fluent
Seconds, milliseconds, ISO, and RFC formats — decode Unix values or mint them from a human moment.
Timeline math
Add or subtract days, hours, minutes, and seconds — project a start moment forward or back.
API ready
Same chronograph flows available programmatically — plug in a key and ship timezone logic to production.