Date and time tools
Unix timestamps, ISO dates, time zones, cron expressions and durations.
- Add or Subtract Time Add or subtract days, weeks, months, years, hours or business days from a date.
- Age Calculator Calculate exact age in years, months and days from a date of birth, with a countdown to the next birthday.
- Date Difference Calculator Calculate the time between two dates in years, months and days, plus total days, hours and business days.
- Date Format Converter Reformat dates with a custom pattern, one per line, in UTC or local time.
- Duration Formatter Convert a number of seconds, milliseconds or minutes into a readable duration and clock format.
- ISO 8601 Date Converter Convert timestamps and loosely formatted dates to ISO 8601, the standard machine-readable date form.
- Monthly Calendar Generator Generate a plain-text monthly calendar for any month, with the week starting on Monday or Sunday.
- Time Zone Converter Convert one date and time into several time zones at once, with daylight saving handled.
- Timesheet Calculator Type your shifts as clock in, clock out and break, and get daily hours, weekly totals and gross pay.
- Unix Timestamp Converter Convert Unix timestamps to human dates and back, in any time zone, with ISO, RFC and relative forms.
- Week Number Calculator Find the ISO 8601 week number and day of the year for any date.
Other categories
- JSON tools
- XML tools
- YAML tools
- CSV and TSV tools
- HTML tools
- CSS tools
- JavaScript tools
- SQL tools
- Code formatters
- Minifiers
- Validators
- Data converters
- Encoders and decoders
- Escape and unescape
- Hash and cryptography
- String and text tools
- Number tools
- Color tools
- Unit converters
- Generators
- Random data generators
- Image tools
- Compress and decompress
- Network and DNS tools
- Web and developer tools
- Chart makers
- Cheat sheets
- Fun text tools
- Calculators