"Wed, 25 Jun 2025 14:44:55"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250625
Only TIME
14:44:55
General datetime
2025-06-25 14:44:55Z
For Database
2025-06-25 14:44:55
For HTTP1.1
Wed, 25 Jun 2025 14:44:55 GMT