SMART • SIMPLE • FREE
Time & Date tools that make everyday calculations easy.
Calculate ages, time intervals, date differences, countdowns and more — instantly, directly in your browser.
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10+Useful tools
100%Browser based
0Sign-up required
TOOLS
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🎂
Age Calculator
Find exact age in years, months and days.
Open tool → 📅Date Difference
Calculate the gap between two dates.
Open tool → ⏱️Time Interval
Calculate duration between two times.
Open tool → ➕Date Add / Subtract
Move a date forward or backward by days.
Open tool → 🚀Countdown
Count down to a date and time.
Open tool → 💼Working Days
Count weekdays between two dates.
Open tool → 🗓️Week Number
Find the ISO week number for any date.
Open tool → 🔎Leap Year Checker
Check whether a year is a leap year.
Open tool → 📌Day of the Week
Discover which weekday a date falls on.
Open tool → 🔄Time Converter
Convert hours, minutes and seconds.
Open tool →
WHY TIMEWISE?
Useful answers without unnecessary complexity.
Everything runs locally in your browser. No account is required for the calculators, and your calculation inputs are not sent to our server.
⚡ InstantResults update quickly.
📱 ResponsiveWorks on phone, tablet and desktop.
🔒 Privacy-mindedTools work client-side.
💬 Human supportAsk us on WhatsApp if you need help.