Date & Time Tools
Explore our curated collection of free, instant date & time calculators and converters. All computations execute client-side for maximum speed and privacy.
Date Calculator
Date & TimeAdd or subtract days, weeks, months & years to any date
Age Calculator Pro
Date & TimeExact age in years, months, days, seconds & Zodiac signs
Business Days Calculator
Date & TimeCalculate working days excluding weekends & holidays
Time Zone Converter
Date & TimeCompare 500+ world time zones with DST support
Countdown Timer
Date & TimeLive animated countdown timer for events & target dates
Online Stopwatch
Date & TimeHigh-precision millisecond stopwatch with lap tracking & CSV export
Unix Timestamp Converter
Date & TimeConvert Epoch timestamps to human dates, UTC & ISO 8601
Working Hours Calculator
Date & TimeCalculate daily, weekly & monthly net work hours & pay
Week Number Calculator
Date & TimeDetermine ISO 8601 week number, quarter & day of year
Cron Expression Generator
Date & TimeVisual Cron builder with human-readable schedule description
Date Duration Calculator
Date & TimeCalculate the exact duration between two dates