Long timeAvailable = (endTime.hour() * 60 + endTime. Time endTime = user.Appointment_End_Time_c Without converting to DateTime values, you need to calculate the hours and minutes, and subtract the difference Time startTime = user.Appointment_Start_Time_c Long timeAvailable = endTime.getTime() - startTime.getTime() Note that even though milliseconds are an attribute of datetime, the database does not currently store or return milliseconds, so millisecond() called on a value from the database will always be zero.įull Example: DateTime startTime = DateTime.newInstance(Date.today(), user.Appointment_Start_Time_c) ĭateTime endTime = datetime.newinstance(Date.today(), user.Appointment_End_Time_c) From there, to get the minutes, divide by 60,000: timeAvailable /= 60000 This math gives you a difference in milliseconds. In the Format Cells dialog box, click Custom in the Category list, and then select a custom format in the. On the Home tab, in the Number group, click the arrow next to the General box, and then click More Number Formats. We use DateDiff VBA Function to determine the number of Minutes between two Times. The getTime method returns the number of milliseconds since Jan 1st, 1970, midnight GMT. Apply a custom format code to the cell by doing the following: Select the cell. Calculate Minutes Between two Times in Excel VBA using VBA formulas. To get a difference in time, subtract the milliseconds via getTime: Long timeAvailable = endTime.getTime() - startTime.getTime() hour returns a value from 0 to 23, minute from 0 to 59, second from 0 to 59, and millisecond from 0 to 999. For example, if I say it is ten minutes past six (assume early morning), hour returns 6, minute returns 10, etc. The hour(), minute(), second(), and millisecond() methods return the value as you'd expect if you were telling someone what time it is.
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