Steps to reproduce:

1. Upgrade Zabbix agent (Zip archive) from 7.0.17 to 7.0.18
2. Inspect agent log files
3. Date and time are incorrect in log file, starting with the Epoch :  19700101:010000 instead of correct date
4. Additionally when trying to set DebugLevel=4, zabbix_agentd.exe crashes at start.

Result:

Expected:

Correct date and time as in version 7.0.17 and earlier.

Notes :

• Server date and time are correct, this happens on physical and virtual servers.
• Problem could be related to recent changes in libs/zbxtime/time.c