📅 Date & Time Calculators

Calculate a future date by adding a specific number of days.

Calculate a future date by adding a specific number of months.

Calculate a future date by adding a specific number of years.

Calculate a past date by subtracting a specific number of days.

Calculate a past date by subtracting a specific number of months.

Calculate a past date by subtracting a specific number of years.

Calculate the number of days between two dates.

Calculate the number of weeks between two dates.

Calculate the number of months between two dates.

Calculate the number of years between two dates.

Add or subtract business days from a date.

Calculate net work hours by subtracting breaks.

Calculate project deadlines with calendar or business days.

Find the week number for a given date.

Calculate your exact age in years, months, and days.

Convert an ISO week number to a date range.

Get deep insights about your birth date, including zodiac, stats, and more.

Find out if you are a Boomer, Gen X, Millennial, Gen Z, or Alpha.

Convert your dog or cat age to human years accurately.

Estimate your baby due date based on your last period.

Calculate when you reach major life milestones in total days lived.

Convert any date into elegant Roman numerals for tattoos or designs.

Find out exactly when your 6-month half-birthday occurs.

Discover the lunar phase, illumination, and moon age for any specific date.

Check if a year is a leap year and see a list of upcoming leap years.

Countdown to any date and time with precision.

Calculate the duration between two times.

Convert between Unix timestamps and human-readable dates.

Coordinate meetings across multiple globally synchronized time zones.

Prominent countdown for product launches and webinars.