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Date & Time Tools

Calculate date differences, convert timezones, run live countdowns, and convert Unix timestamps — all instantly in your browser. No sign-up, no data ever leaves your device.

Instant results

Never leaves your device

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All 9 Date & Time Tools

Popular

#01

Date Difference Calculator

Days, weeks, months, and years between two dates

#02

Date Add/Subtract

Add or subtract days, weeks, months, or years from a date

Popular

#03

Countdown Timer

Live countdown to any date and time

Popular

#04

Timezone Converter

Convert a time between any two timezones

Popular

#05

Unix Timestamp Converter

Convert between Unix epoch time and human-readable dates

#06

Working Days Calculator

Business days between two dates, excluding weekends

#07

Week Number Calculator

ISO week number for any date

#08

Time Duration Calculator

Add, subtract, and sum hours, minutes, and seconds

#09

Days Until Date

How many days until any future date or event