Calendar
- Create monthly and yearly calendars.Date Calculator
- Add to or subtract from a date.First Day of Spring
- Find the first day of spring.First Day of Summer
- Find the first day of summer.Shortest Day of the Year
- Find the shortest day of the year.First Day of Winter
- Find the first day of winter.Longest Day of the Year
- Find the longest day of the year.Next Leap Year
- Calculate when is the next leap year.Is it Christmas?
- Check if today is Christmas.Day of the Week Calculator
- Calculate day of the week for a date.First Day of Autumn
- Find the first day of autumn (fall).Leap Years List
- List all leap years between two years.Time Between Two Dates
- Calculate time duration between two dates with time.Days Between Two Dates
- Calculate the number of days between two dates.When is Leap Year?
- Find out when is the last and next leap year.Day of the Year Calculator
- Calculate day number of the year and days remaining.Day of Year Calendar
- Create day of year calendar.Days in Month
- Calculate days in month of a year.Vernal Equinox Day
- Find the date of vernal equinox.Autumnal Equinox Day
- Find the date of autumnal equinox.Winter Solstice Day
- Find the date of winter solstice.Summer Solstice Day
- Find the date of summer solstice.Time to Decimal Converter
- Convert hours, minutes and seconds time to decimal.Is it Leap Year?
- Check if a year is a leap year.Decimal to Time Converter
- Convert decimal time to hours, minutes and seconds.Is it April Fool's Day?
- Check if today is April fool's day.Birth Day of the Week Calculator
- Calculate what day of the week you were born.