Tips for Time Calculations in Solver

Entering a time value in Solver depends on how you set your Time Format in SETUP. Assuming Format 1 (HH:MM:SS), then HH.MMSS would be the format in Solver. Solver has two time functions: HR() converts HH.MMSS to an hour and a decimal part of an hour. HMS() converts the fractional hour to hours and minutes. Also, remember that HP CALC uses military time not a.m./P.M., so use 14.53 instead of 2:53pm.

Solver handles time and degrees by converting them to a decimal format. This is made very simple in Solver's editor by selecting the CONV (F5) and then HR (F4). This yields a HR() with your cursor inside the parentheses. You then enter HH.MMSS, e.g. 15.3322 for 3:3322 PM, and the function converts to decimal format, e.g. 15.5561. When you finish a calculation and want to convert back to hours and minutes, select CONV (F5) and then HMS (F5), putting the decimal time within the parentheses.