Date & Time
Date and time calculators for age, durations, countdowns, and scheduling tasks.
About Date & Time Calculators
Our date and time calculators help you work with dates, durations, and schedules quickly and accurately. The age calculator determines your exact age down to the minute, while the date difference calculator counts the precise number of days, weeks, and months between any two dates. Planning an event? The days-until calculator counts down to any future date, and the work days calculator excludes weekends and holidays for accurate business day counts. Developers appreciate the Unix timestamp converter for converting between epoch time and human-readable dates, while the day-of-the-week calculator tells you what day any historical or future date falls on. The time duration calculator handles arithmetic with hours, minutes, and seconds for timesheet and scheduling needs. Every calculator in this collection handles edge cases like leap years, daylight saving time transitions, and month-length variations correctly, giving you reliable results for any date range.
Featured Calculators
Frequently Asked Questions
Q: Do the date calculators account for leap years?
A: Yes. All our date and time calculators fully account for leap years following the Gregorian calendar rules: a year is a leap year if divisible by 4, except century years which must be divisible by 400. This means 2024 and 2028 are leap years, but 1900 was not while 2000 was. The leap year calculator can verify any year and find the next leap year from any date.
Q: What time zones are supported by the time tools?
A: Our date and time tools use your browser's built-in timezone support, which covers all IANA time zones worldwide (over 400 zones). The time zone converter specifically supports all major global time zones and automatically handles daylight saving time transitions. Unix timestamp conversions use UTC as the reference standard.