
Lap Timer: 5 Steps to Measure Every Stage of a Task
Use a lap timer to measure task stages in five steps. Read individual and cumulative times, check your totals, and…
Read guideCalculate durations and age, convert time, and plan around dates.
Days Remaining Calculator (Hijri & Gregorian)
Convert hours, minutes and phrases into numeric durations.
Calculate your exact age in years, months and days, plus days lived and time to your next birthday.
Count working days between two dates, excluding weekends and public holidays.
See how many days, hours and minutes remain until the next Ramadan begins.
Convert any date between Hijri and Gregorian, in either direction, right in your browser.
Calculate your age in both the Hijri and Gregorian calendars from a single birth date.
Your local time and GMT, live — your timezone is detected automatically.
A precise stopwatch with lap recording, right in your browser.
Convert any time between 24-hour and 12-hour (AM/PM) format instantly, in either direction.
Set a time and start a beautifully designed countdown, with a sound alert when it finishes.
See how many days and hours remain until the next astronomical start of Spring.
See how many days and hours remain until the next astronomical start of Summer.
See how many days and hours remain until the next astronomical start of Autumn.
See how many days and hours remain until the next astronomical start of Winter.

Use a lap timer to measure task stages in five steps. Read individual and cumulative times, check your totals, and…
Read guideFind how old you will be in 2050 with a birth-year table and 5 examples. Check the age you will…
Read guideConvert seconds to hours and minutes with an exact formula, a 10-example table and worked answers for 3,600, 5,400 and…
Read guideConvert hours to minutes and minutes to hours, compare decimal hours with HH:MM, and learn when AI helps interpret duration…
Read guideFind out how old you will be in 2030 or any future year, with simple examples and a free age…
Read guideCalculating the hours between two times is straightforward when both times fall on the same day, but overnight shifts, breaks,…
Read guideYour boarding pass says the flight leaves at 18:40. A shift roster lists a meeting at 21:15. If you are…
Read guideLearn the difference between GMT and UTC, check current GMT time, and convert GMT to Eastern, Central, Mountain, Pacific, Alaska,…
Read guideDays Calculator: Count the Days Between Two Dates (Hijri & Gregorian) Need to know exactly how many days are left…
Read guideالنسخة العربية: كيفية حساب أيام العمل بين تاريخين والعطلات الرسمية Counting the days between two dates is easy until weekends,…
Read guideFind the Date of Your Next Birthday A birthday calculator compares your birth month and day with today's date to…
Read guideCalculate Age in the Past or Future Sometimes you need to know your age on a date other than today.…
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