Can I use a formula column to sum multiple Time Tracking columns?

[IdoR (Ido Rahav)]

Hello,
Can you please tell me how can I sum a row of time tracking?
I used the Formula “SUM” function but got an unidentified number.

Thanks!

[PolishedGeek (Polished Geek | Platinum Partner)]

Hi, @IdoR - Welcome to the community! I think this video clip will help: Screen Recording 2021-03-21...

[IdoR (Ido Rahav)]

Thanks! @PolishedGeek