Calculator -- time, gcd, lcm APK

Contains a simple standard calculator and add, subtract, multiply and divide units of time is a time calculator .
1. year , day, hour, minute, and second can be calculated by the calculator
2. support mix units of time. Ex.10h5m5s+5m1h = 11hr 10min 5sec
3. support converted button to convert into units of another time style.
4. You can use a standard calculator including square root and reciprocal.

※ To use this calculator, first you should know :
Entering a time (such as 07:08:09 + 5 hours) to enter an input to the following sequence.
07:08:09 To enter , type the following:
1. Number [7] to [h] input
2. Number [8] to [m] input
3. Number [9] to [s] input
4. input to [+] add button
5. Number [5] to [h] input
6. input to [=] equal button
The result will display 12h 8m 9s on screen.
You can press [Convert] button to convert another time style.

Keywords: time calculator, time sharing, working hours, overtime, time calculation, time calculation, math, time, gcd, lcm, prime