How to subtract hours and minutes
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As datetime variables are recorded in seconds, an alternative is to use the fact that there are 60 seconds in a minutes and just do the arithmetic directly (datetime2 - datetime1)/60 provides minutes with decimal fractions. FLOOR( (datetime2 - datetime1)/60 ) provides the whole minute durations.
I need to subtract 2 times with moment.js (get the difference), and then with that result, subtract some additional minutes (simple int). It's for calculating timesheets. A few examples: Example #1: Start time: 10:00 AM (represented in j...