Time calculator App for Android
Time Elapsed / Countdown Time Calculator
With the Time Calculator you can calculate the subtraction between 2 dates:
You can fix a date in the past and subtract it from the present time: You get the elapsed time.
You can fix a date in the future and subtract the present time: You get the countdown to the fixed date.
(Light gray dates are in the past; Light green dates are in the future)
Don't work for dates earlier than 1582.
Math: Real life application.
Estimation is a skill for life.