Time & date calculators
Free time and date calculators for age, date differences, countdowns, time zone conversion, business days, work hours, and more.
My Time Calculators offers 101 free time and date calculators for age, date difference, countdowns, time-zone conversion, business days, work hours, day of week, leap years, and Unix timestamps — all instant and accurate.
All time calculators (101)
Age calculator
Exact years, months, days
Date difference
Days between dates
Countdown
Days until an event
Time zone converter
Convert between zones
Work hours
Total time worked
Time adder
Add / subtract time
Day of week
What day was it?
Leap year
Is it a leap year?
Quarter of year
Q1–Q4 finder
Business days
Working days between dates
Stopwatch / timer
Measure elapsed time
Unix timestamp
Convert epoch time
Weekly time card
Total weekly hours & pay
Age in days
Age in days, weeks, hours
Week number
ISO week of the year
Days in month
Days in any month/year
Pomodoro planner
Work/break session plan
Daylight length
Hours of daylight
Meeting planner
Best time across zones
Moon phase
Phase on any date
Time duration
Between two times
Add or subtract days
Date after N days
Sleep cycle (bedtime)
When to fall asleep
Hours to decimal
HH:MM to decimal hours
Today's date
What is today’s date?
What year is it?
Current year
What month is it?
Current month
Day of the year
What day of the year is it?
Week of the year
What week is it?
Days left in the year
How many days left this year?
Weeks left in the year
How many weeks left this year?
Months of the year
All 12 months reference
2026 calendar
Full year 2026 calendar
2027 calendar
Full year 2027 calendar
Digital clock
Live digital clock
Analog clock
Live analog clock
Next birthday countdown
Days until your birthday
Age on a date
Your age on any given date
Half birthday
Your half-birthday date
Day milestones
10,000 days old & more
Working days left in year
Business days remaining
Retirement countdown
Time until retirement
Weekends until a date
Count Saturdays & Sundays
Add & subtract time
Add hours, minutes, seconds
Time until a time
Hours & minutes until a time
Military time converter
24-hour ↔ 12-hour clock
Decimal to time
Decimal hours to HH:MM
Travel time
Time from distance & speed
Pet age (dog years)
Dog & cat years converter
Reading & typing time
Time to read or type text
Time since a date
How long ago something was
Deadline backdater
Start date for a deadline
14 days from today
Date 14 days from now
21 days from today
Date 21 days from now
28 days from today
Date 28 days from now
30 days from today
Date 30 days from now
45 days from today
Date 45 days from now
60 days from today
Date 60 days from now
90 days from today
Date 90 days from now
120 days from today
Date 120 days from now
4 weeks from today
Date 4 weeks from now
6 weeks from today
Date 6 weeks from now
8 weeks from today
Date 8 weeks from now
10 weeks from today
Date 10 weeks from now
12 weeks from today
Date 12 weeks from now
16 weeks from today
Date 16 weeks from now
20 weeks from today
Date 20 weeks from now
52 weeks from today
Date 52 weeks from now
2 months from today
Date 2 months from now
3 months from today
Date 3 months from now
4 months from today
Date 4 months from now
5 months from today
Date 5 months from now
6 months from today
Date 6 months from now
9 months from today
Date 9 months from now
12 months from today
Date 12 months from now
18 months from today
Date 18 months from now
8 hours from now
Time 8 hours from now
10 hours from now
Time 10 hours from now
12 hours from now
Time 12 hours from now
16 hours from now
Time 16 hours from now
18 hours from now
Time 18 hours from now
20 hours from now
Time 20 hours from now
72 hours from now
Time 72 hours from now
5 minutes from now
Time 5 minutes from now
10 minutes from now
Time 10 minutes from now
15 minutes from now
Time 15 minutes from now
20 minutes from now
Time 20 minutes from now
25 minutes from now
Time 25 minutes from now
30 minutes from now
Time 30 minutes from now
What month is January?
January — month 1 of 12
What month is February?
February — month 2 of 12
What month is March?
March — month 3 of 12
What month is April?
April — month 4 of 12
What month is May?
May — month 5 of 12
What month is June?
June — month 6 of 12
What month is July?
July — month 7 of 12
What month is August?
August — month 8 of 12
What month is September?
September — month 9 of 12
What month is October?
October — month 10 of 12
What month is November?
November — month 11 of 12
What month is December?
December — month 12 of 12
Why use our time calculators
Time is surprisingly tricky to calculate by hand — leap years, time zones, business days, and date spans trip up even careful people. Our time and date calculators handle the edge cases for you: your exact age to the day, the working days between two dates, what a meeting time becomes across time zones, or how long until an important event.
From planning projects and counting down to deadlines, to converting time zones for international calls and computing precise ages for forms, these tools save you from error-prone manual counting. Each one accounts for the calendar quirks — month lengths, leap years, weekends — so the answer is right the first time.
How to choose the right calculator
- Pick the calculator for your need — ages, spans, countdowns, or time conversion.
- Enter dates using the date picker, or times in 24-hour format where required.
- Get a precise result broken into useful units like years, weeks, days, and hours.
- Use related tools to handle connected tasks, such as business days alongside work hours.
Frequently asked questions
Do these calculators account for leap years?
Yes. The date and age calculators correctly handle leap years, varying month lengths, and other calendar rules.
Can I convert between any two time zones?
Yes. The time-zone converter works with UTC offsets, letting you convert a time between any two zones worldwide.
Do business-day calculations exclude weekends?
Yes. The business-days calculator counts Monday to Friday only. Public holidays vary by country, so subtract those manually.
Is the age calculator exact?
It calculates your precise age in years, months, and days as of today or any reference date you choose.