Calculate hours for an event when it's run for a certain amount of hours over two days

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If I'm running a two day event which starts at 10:00 and ends at 14:00 on both days how do I calculate the total duration of the event to be 8hrs?

When I use this formula it's calculating it as start time on the first day to end time on the second day when all I really want is two days multiplied by 4hrs.

=IFERROR(((VALUE(LEFT([EVENT END TIME]@row, FIND(":", [EVENT END TIME]@row) - 1)) + VALUE(RIGHT([EVENT END TIME]@row, 2)) / 60) + ([EVENT END DATE]@row - [EVENT START DATE]@row) * 24) - (VALUE(LEFT([EVENT START TIME]@row, FIND(":", [EVENT START TIME]@row) - 1)) + VALUE(RIGHT([EVENT START TIME]@row, 2)) / 60), "")

If I use this formula to convert the start and end times and then use the NETDAYS formula I get the right answer to a degree as it only likes to give a reults in a whole number and I need it to include hours and minutes.

=VALUE(LEFT([EVENT START TIME]@row, FIND(":", [EVENT START TIME]@row) - 1)) + IF(CONTAINS("p", [EVENT START TIME]@row), IF(VALUE(LEFT([EVENT START TIME]@row, FIND(":", [EVENT START TIME]@row) - 1)) <> 12, 12), IF(VALUE(LEFT([EVENT START TIME]@row, FIND(":", [EVENT START TIME]@row) - 1)) = 12, -12))

=VALUE(LEFT([EVENT END TIME]@row, FIND(":", [EVENT END TIME]@row) - 1)) + IF(CONTAINS("p", [EVENT END TIME]@row), IF(VALUE(LEFT([EVENT END TIME]@row, FIND(":", [EVENT END TIME]@row) - 1)) <> 12, 12), IF(VALUE(LEFT([EVENT END TIME]@row, FIND(":", [EVENT END TIME]@row) - 1)) = 12, -12))

=NETWORKDAYS([EVENT START DATE]@row, [EVENT END DATE]@row) * ([END TIME]@row - [START TIME]@row)

Best Answer

  • Paul Newcome
    Paul Newcome ✭✭✭✭✭✭
    Answer ✓
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    So what you need to do is add on to each so that the minutes are output as a decimal. You are also using an overly complicated formula since your times are already in 24 hour format. Try this instead:

    =VALUE(LEFT([Event Start Time]@row, FIND(":", [Event Start Time]@row) - 1)) + (VALUE(RIGHT([Event Start Time]@row, 2)) / 60)


    Do the above for the event end time as well and then use your NETWORKDAYS piece.

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