calculator for time & angle

This is for calculating time and angle.

For example, you can calculate 1hr 30min + 3hr 45min = ? 1hr / 100 = ? How many hours and minutes are 10000 seconds?

This app will also help calculation for the horoscope, as follows 360° / 24 = ? 15° 30' - 5° 45' = ?

The system is very simple. you just choose [time/angle] mode and [+,-,x,/] mode and input numbers.