Time Tools

Convert Unix epoch timestamps into human-readable dates.

Convert millisecond timestamps to localized date strings.

Parse human-readable dates into Unix timestamps.

Convert dates and times across global IANA timezones instantly.

Calculate the exact time elapsed between two specific dates.

Calculate future or past dates by adding or subtracting time.

Normalize messy dates into strict ISO 8601 strings.

Preview the next matching run times for a cron expression using a configurable base date.

Calculate working days between two dates while excluding weekends and custom holidays.

Convert between calendar dates and astronomical Julian day numbers.

Format parsed dates into strict RFC 3339 timestamps with configurable precision.

Measure exact age in years, months, days, weeks, and hours from any birth date.

Run a millisecond-resolution stopwatch with lap and split tracking.

Preview a live countdown and generate a simple embeddable countdown snippet.