Welcome to the community, @Takashi_Takiguchi!

If you’d like to return your result in minutes, this is the formula you would use:

IF(
AND({End Time}, {Start time}),
DATETIME_DIFF({End Time}, {Start time}, 'minutes')
)

IF(
AND({End Time}, {Start time}),
DATETIME_DIFF({End Time}, {Start time}, 'minutes')
)

Thank you for your helping hand @ScottWorld.

Unfortunately, it’s not working… how I cut and pasted the formula is wrong?

Change the ‘minutes’ to ‘seconds’. It’s because you have the format in a time format. This formula is built well for a field with a format of Intiger. You’re looking for an output in duration so switching it to seconds will make the difference. So your formula would now read;

IF(
AND({End Time}, {Start time}),
DATETIME_DIFF({End Time}, {Start time}, 'seconds')
)

hth,
Nathalie@VAcePro.com

IF(
AND({End Time}, {Start time}),
DATETIME_DIFF({End Time}, {Start time}, 'seconds')
)

Thank you very much for your help, Nathalie!

Yes, it calculated it correctly now! :slightly_smiling_face:

Cheers,
Taka

Thanks, @Nathalie_Collins!

Yes, to summarize what Nathalie said above:

• Use ‘minutes’ if you are looking for an integer result.
• Use ‘seconds’ if you are looking for a duration result, because duration formatting is based on number of seconds. (You can also multiply any minute integers by 60 to yield seconds, too.)