"Sun, 16 Feb 2025 19:25:49"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250216
Only TIME
19:25:49
General datetime
2025-02-16 19:25:49Z
For Database
2025-02-16 19:25:49
For HTTP1.1
Sun, 16 Feb 2025 19:25:49 GMT