Fix report time (#18960)
Fixes #18959
### Summary of the issue:
Report current time gesture (`NVDA+f12`) doesn't work.
### Description of user facing changes:
Works again.
### Description of developer facing changes:
None.
### Description of development approach:
Set `dwFlags` to `0` if `None` is passed.
### Testing strategy:
Manual testing
### Known issues with pull request:
None.
