If you are starting to notice your ACH transactions being processed same-day, versus the usual next-day. You are not alone.
On March 19, 2021, the operating hours of Same Day ACH were extended through the establishment of a third daily opportunity to clear and settle Same Day ACH payments.
Extending the operating hours of Same Day ACH gives all financial institutions, especially West Coast banks, the opportunity to use the same day functionality through more of the business day,
https://www.nacha.org/news/ach-network-marks-successful-expansion-same-day-ach