Date & Time Calculators

Finds the number of days, weeks, months, or years between two specific dates

Calculates the time left until a future date (e.g., a deadline or event)

Finds a new date or time after adding or subtracting a specific duration

Calculates the date or duration only counting weekdays (Monday to Friday)

Determines a person's current age in years, months, and days based on their birth date

Finds the day of the week a person was born or will have their next birthday

Estimates a person's remaining years based on various health and lifestyle factors

Converts a time from one global time zone to another

Converts between standard (12-hour) and military (24-hour) time formats

Determines the day of the week for any given date

Converts a standard calendar date to the Julian day number

Calculates total hours worked between start and end times, often subtracting breaks

Determines if a specific year is or will be a leap year

Converts a standard date and time to and from Unix Time

Calculate how many seconds you've lived

Calculate the time between two times

Find which week of the year a date falls in

Calculate time within business hours

Create a countdown to a specific date

View current time in different time zones