Read the input
Enter seconds, milliseconds, microseconds, nanoseconds, or a supported date string and view structured developer and calendar values.
EPOCH TIME
Convert Unix values and common dates, compare the same instant across timezones, and calculate the change between two points in time.
Free download. Requires macOS 14 or later.
WHAT IT HELPS WITH
Enter seconds, milliseconds, microseconds, nanoseconds, or a supported date string and view structured developer and calendar values.
See the same instant in Local, UTC, a selected timezone, and the comparison zones that matter to your work.
Apply a duration, move to a time boundary, or compare two instants with exact output down to nanoseconds.
ONE INSTANT
Copy Unix units, ISO 8601, RFC 3339, RFC 2822, SQL, human-readable, relative, and calendar values from one result.
The live current-time strip keeps updating without replacing the timestamp you are inspecting.
INCLUDED IN FREE
Conversion, timezone comparison, live current time, presets, duration changes, boundaries, exact differences, and copy actions are included in Free.
RESTORED LOCALLY
Non-sensitive input and options may be restored on this Mac. Results are rebuilt from that input instead of being stored as a separate history.
LOCAL BY DEFAULT
Conversion, date parsing, timezone comparison, and calculations run locally. The workbench makes no network request.
Read the Dev Workbench privacy policy