Date.Time Calculator

Date.Time Calculator lets you easily perform calculations involving dates, times, and time intervals, as well as convert between units of time — all with the familiar feel of a calculator.

Date.Time Calculator supports the following operations:

• Basic arithmetic with numbers (integers and decimals)
• Arithmetic with numbers and Time Intervals
• Operations between Time Intervals (addition, subtraction, and division)
• Operations between Time Intervals and Time Points (addition and subtraction)
• Operations between Time Points (calculating the difference)
• Conversion between units of time
• Conversion to and from POSIX Time
• Conversion between time zones

Date.Time Calculator is especially useful for questions such as:

• What date is 100 days from today?
• What date and time was it 32,768 seconds ago?
• If one lap takes 1 minute 32.6 seconds, how long will 62 laps take?
• What time will it be after those 62 laps?
• How many days have passed since January 23 of this year?
• How many days are 100,000 seconds?
• What date and time does POSIX Time 1234567890 represent?
• What is the current time in POSIX Time?

And with a little creativity, Date.Time Calculator can be useful in many other situations as well.