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QuarterHour ( theTime )

Converts time to the quarter hour

  Average rating: 4.4 (28 votes) Log in to vote

Jim Mitchell - Show more from this author https://jimmitchell.org

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

Case( GetAsNumber(theTime) > 0 and (theTime/3600) - Truncate((theTime/3600); 0) >= 0 and (theTime/3600) - Truncate((theTime/3600); 0) < .13; GetAsTime(Hour(theTime) & ":00"); GetAsNumber(theTime) > 0 and (theTime/3600) - Truncate((theTime/3600); 0) >= .13 and (theTime/3600) - Truncate((theTime/3600); 0) < .38; GetAsTime(Hour(theTime) & ":15"); GetAsNumber(theTime) > 0 and (theTime/3600) - Truncate((theTime/3600); 0) >= .38 and (theTime/3600) - Truncate((theTime/3600); 0) < .63; GetAsTime(Hour(theTime) & ":30"); GetAsNumber(theTime) > 0 and (theTime/3600) - Truncate((theTime/3600); 0) >= .63 and (theTime/3600) - Truncate((theTime/3600); 0) < .88; GetAsTime(Hour(theTime) & ":45"); GetAsNumber(theTime) > 0 and (theTime/3600) - Truncate((theTime/3600); 0) >= .88 and (theTime/3600) - Truncate((theTime/3600); 0) < 1; GetAsTime(Hour(theTime) + 1 & ":00") ) Click to copy

Calculates the quarter-hour equivalents of hourly time for payroll type uses.

Works great as an Auto-Enter Calculation (replacing the contents) when using time fields

 

Comments

		Kyle Williams, Augusto Digital Aug 10, 2020
Here is another variant that might calculate a little faster.. I imagine using the mod function could help simplify this function even more.. Let([ tm = theTime ;n = GetAsNumber(tm) ;sec = tm/3600 ;Ttm = Truncate((tm/3600); 0) ;hr = Hour(tm) ]; Case( n > 0 and sec - Ttm >= 0 and sec - Ttm < .13; GetAsTime(hr & ":00"); n > 0 and sec - Ttm >= .13 and sec - Ttm < .38; GetAsTime(hr & ":15"); n > 0 and sec - Ttm >= .38 and sec - Ttm < .63; GetAsTime(hr & ":30"); n > 0 and sec - Ttm >= .63 and sec - Ttm < .88; GetAsTime(hr & ":45"); n > 0 and sec - Ttm >= .88 and sec - Ttm < 1; GetAsTime(hr + 1 & ":00") ))

		Paul, Peak 14 LLC Feb 25, 2022
Was looking for this online and decided to make it with Mod(). You can do this with a 1 liner: theTime - Mod ( theTime; 3600 ) + Round ( Mod ( theTime; 3600 ) / 900; 0 ) * 900 It's quite simple though and doesn't do any error trapping. I made this into a Custom Function that does that and lets you define what you want to round it to: https://www.briandunning.com/cf/2579

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