When I created a timeline for DaVinci Resolve, the timeline is set to “01:00:00:00”. Here is how to change it.
Set start timecode
Right-click on the timeline you want to change the display → Open “Set start timecode”.
Change the display of “Set new start timecode” from 01:00:00:00 to 00:00:00:00 and press OK.
The timeline time has changed to “00:00:00:00”!
summary
This way you can change the DaVinci Resolve timeline notation to “00:00:00:00” time.
Please refer to it.