In this field you may optionally specify the pattern for parsing the log line timestamp. Supported placeholders: * y: Year (1970-2038) * M: Month (01-12) * d: Day (01-31) * h: Hour (00-23) * m: Minute (00-59) * s: Second (00-59) If left blank, the timestamp will be set to 0 in Unix time, representing January 1, 1970. For example, consider the following line from the Zabbix agent log file: " 23480: