Expressions like {{ $now }} use the timezone of the workflow, which you can change in the settings(refer to image). You can set different timezones for different workflows.
Thank you for your reply. It seems that my settings here are reasonable, but the issue is that the time zone will automatically convert when storing data in a database
The effect I want to achieve is to store the alarm time field in the datatable and insert it. Currently, the crearedAT field is UTC+8 (which is the expected time zone), but what UTC time zone does the crearedAT field output to the big model。