Time Zone:

These options determine how time from log files is converted into time used when analyzing logs. By default (if the Use system time zone option is on) the program uses Windows settings to convert server time to the local time. You can also specify custom time offset (in hours).

Date Format:

The program can use either default Windows date format or a custom format.
The custom date format must include information about day, month, and year. You can use the following format specifiers:

Examples: mm/dd/yyyy, dd/mm/yyyy, dd.mm.yyyy

First day of week:

Select a day that will be used as the first day of week in reports.