DATE/TIME
Date Diff
Calculate the exact difference between two dates in years, months, days, weeks, and hours. Also show…
Plan around dates and deadlines
Date & Time
Date calculations, time zone conversions, and countdown tools.
Calculate the exact difference between two dates, find work days excluding Indian public holidays, convert time zones for IST, or count down to an event. These tools handle the date and time math that spreadsheets make tedious.
Popular Date/Time tools
Date Diff Calculate the exact difference between two dates in years, months, days, weeks, and hours.… Age in Days Calculate your exact age in days, hours, minutes, and seconds from your date of birth. See… Time Zone Convert time between world time zones with IST focus. See the equivalent time in any city … Work Days Calculate the number of business/working days between two dates. Excludes weekends and opt… Countdown Calculate the number of days, hours, and minutes remaining until a target date. Includes c…
DATE/TIME
Time Zone
Convert time between world time zones with IST focus. See the equivalent time in any city or UTC off…
DATE/TIME
Work Days
Calculate the number of business/working days between two dates. Excludes weekends and optionally In…
DATE/TIME
Duration
Calculate the duration between two times in hours, minutes, and seconds. Supports overnight spans an…
DATE/TIME
Countdown
Calculate the number of days, hours, and minutes remaining until a target date. Includes common Indi…
DATE/TIME
Age in Days
Calculate your exact age in days, hours, minutes, and seconds from your date of birth. See fun miles…
Frequently asked about date/time tools
Do work-day calculators account for Indian public holidays?
Yes. The work-days calculator excludes weekends by default and lets you add custom holidays. We are building a built-in Indian gazetted holiday list — for now, paste them in manually.
Which time zone do datetime tools assume?
All inputs default to your device's local time zone. The time-zone converter explicitly lets you pick source and target zones, including IST.
How do you handle leap years and DST?
All calculations use the JavaScript Date API, which handles leap years correctly. India does not observe daylight saving, so DST only affects cross-zone conversions.