feima0011 Will the clock difference make bela unable to work as expected?
No.
feima0011 The clock on my pc is not synchronized with Bela?
Bela does not have a battery, so when it's powered down it "forgets" the current time. The time is normally set every time you open the IDE in the browser. Also, it is set every time you run one of the Bela scripts from the host.
If you want to set it manually, something like this will work on Mac/Linux:
ssh root@192.168.7.2 "date -s \"`date '+%Y%m%d %T %z'`\""