Calculate the difference in hours based on two time fields [SOLVED]

[Alec_East]

Mabye this is an easy one for you Airtable gurus. I am currently creating a more or less complex ToDo list and want to create a field which calculates the difference between Estimate and ACTUAL use of time. Does anyone know a simple trick or formula to solve this? Many thanks in advance !

[W_Vann_Hall]

“how would this question be answered if someone was using the date field?”

See the first reply to the post, the one from @Jacob_Turley.

[Yannick_Burky]

Same.

Don’t copy/paste because it’s not good single quotes (’ instead of ’)
You can just copy/paste DATETIME_DIFF and follow online help too.