"Sun, 08 Jun 2025 19:05:34"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250608
Only TIME
19:05:34
General datetime
2025-06-08 19:05:34Z
For Database
2025-06-08 19:05:34
For HTTP1.1
Sun, 08 Jun 2025 19:05:34 GMT