Sep24 6am UTC - Sep25 6am UTC totals: 80 layoffs, 9 additions.
September totals (except Sep01): 5635 layoffs, and 825 additions.
Methodology and day-by-day breakdown is in comments.
I know a dev team in Pacific, which had the last day yesterday, but they are still in Slack and it is unclear why O stopped cutting access to some people. Maybe it was too easy to track layoffs. Therefore, these totals are the floor estimate.