Date & Age Calculators

Calculate your exact age in years, months, and days based on your date of birth, and see a countdown to your next birthday.

Calculate the exact number of days between two dates, or add/subtract days, weeks, months, and years from any starting date.

Check exact ages, verify thresholds (e.g. 18+, 21+), and view time metrics based on birthday.

Count the exact number of days between two dates. Fast and easy to use.

Find your exact age in years, months, weeks, days, and seconds. Realtime countdown calculator.

Calculate elapsed hours and minutes between two time periods. Perfect for timesheets and shift tracking.

Calculate daily and weekly work hours, breaks, and gross pay with our free online timesheet calculator.

Compare two birthdays and calculate the exact age gap in years, months, and days.

Find what day of the week (Monday, Tuesday, etc.) any specific calendar date falls on.

Add or subtract days, hours, and minutes from any starting time. Ideal for time cards and duration planning.

Use this free business days between dates calculator to calculate results and review the formula.

Use this free add business days calculator to calculate results and review the formula.

Use this free time zone offset converter to calculate results and review the formula.

Use this free decimal hours to hours and minutes converter to calculate results and review the formula.

Use this free iso week number calculator to calculate results and review the formula.