"Fri, 27 Jun 2025 14:44:59"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250627
Only TIME
14:44:59
General datetime
2025-06-27 14:44:59Z
For Database
2025-06-27 14:44:59
For HTTP1.1
Fri, 27 Jun 2025 14:44:59 GMT