Get Accurate Daylight Savings Time Values with DATEVALUE()
The DATAVALUE() formula option provides more accurate daylight savings time values without workarounds. The option avoids an existing one-hour discrepancy when processing times between 11:00 PM and 1:00 AM.
Where: This change applies to Lightning Experience and Salesforce Classic in all editions.
How: From Setup, in the Quick Find box, enter Company Information. Under Locale Settings, select Improve DATEVALUE() accuracy for DST.