Date & Time Tools
Age, countdown, timezone, and date difference tools.
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Time is the one resource everyone has in equal measure, yet managing it well separates productive people from stressed ones. Our date and time tools help you plan, schedule, and understand time across zones, calendars, and deadlines.
The age calculator gives exact age in years, months, weeks, and days — useful for legal documents, birthday planning, or simple curiosity. The date difference calculator counts business days, calendar days, and working hours between any two dates, accounting for weekends.
For global coordination, the timezone converter and meeting planner show overlapping business hours across cities worldwide with automatic daylight saving time adjustments. The world clock displays live times in major cities at a glance.
Productivity tools include the Pomodoro timer for focused work sessions, the countdown timer for event deadlines, and the stopwatch for precise timing. The business days calculator helps project managers estimate delivery dates excluding weekends and holidays.
All time calculations use the IANA timezone database and account for daylight saving transitions. Whether you are scheduling a call with Tokyo, calculating your exact age, or counting down to a launch, these tools give you accurate, instant results.
Popular Date & Time Tools
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All Date & Time Tools
Stopwatch
Free online stopwatch with lap times and millisecond precision.
Date Difference Calculator
Calculate days, months, and years between two dates.
World Clock
See live times in major cities worldwide with timezone offsets.
Meeting Planner
Find overlapping business hours across multiple timezones.
Hours Between Two Times
Calculate hours and minutes between two times. Perfect for timesheets, shifts, and scheduling.
Work Hours Calculator
Calculate work hours, overtime, and pay from start time, end time, and hourly rate.
Business Days Calculator
Count business days between two dates, excluding weekends.
Day of Week Calculator
Find what day of the week any date falls on, with calendar facts and fun trivia.
Pomodoro Timer
Free online Pomodoro timer with customizable work and break intervals to boost productivity.
Military Time Converter
Convert between standard 12-hour time and military 24-hour time instantly.
Time Card Calculator
Calculate weekly work hours, overtime, and gross pay from daily clock-in and clock-out times.
Frequently Asked Questions
Do these tools account for daylight saving time?▼
Yes. The timezone converter, meeting planner, and world clock use the IANA timezone database and automatically handle DST transitions for all supported locations.
How is age calculated exactly?▼
The age calculator counts complete years, months, and days from the birth date to today. It accounts for varying month lengths and leap years.
Can I calculate business days excluding holidays?▼
The business days calculator excludes weekends. For custom holidays, use the date difference calculator and manually subtract holiday days from the result.
What is the best way to schedule meetings across time zones?▼
Use the meeting planner. Enter your cities and it shows overlapping business hours, making it easy to find a time that works for everyone.
How does the Pomodoro timer work?▼
It runs 25-minute focused work sessions followed by 5-minute breaks. After four sessions, it suggests a longer 15-30 minute break. All intervals are customizable.
Are these tools accurate for historical dates?▼
Yes, within the range of the Gregorian calendar (1582 onwards). For dates before 1582, historical calendar differences may apply.
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