Current Date and Time

To "Settings/Registration Table."
Setting the current date and time is very important. The current date and time settings are used as standard timer settings for functions that require them.
GMT:
The time at the Greenwich Observatory in England is called GMT (Greenwich Mean Time).
Time Zone:
The standard time zones of the world are expressed globally in terms of the difference in hours (up to 12 hours) from GMT (0 hours). A time zone is a region throughout which this time difference is the same.
Daylight Saving Time:
In some countries, time is advanced throughout the summer season. The period in which this is applied is called "Daylight Saving Time."
1.
Press .
2.
Press [Preferences] → [Timer/Energy Settings] → [Date/Time Settings].
3.
Enter the current date and time using -  (numeric keys).
Enter the day and the month using four digits (including zeros). Enter all four digits of the year, and the time in 24-hour notation, as four digits (including zeros) without a space.
Examples:
6 May
→ 0605
7:05 a.m.
→ 0705
11:18 pm
→ 2318
NOTE
If you make a mistake when entering values, press → enter the values again, starting with the month.
Setting the Time Zone:
Using Daylight Saving Time:
Setting the Time Zone:
Press the <Time Zone> drop-down list → select the time zone.
Using Daylight Saving Time:
Press [On] → [Start Date].
Press the <Month> and <Day> drop-down lists → select the month and day.
Press [-] or [+] to adjust the time → press [OK].
Press [End Date] → select the month, day, and time at which Daylight Saving Time ends → press [OK].
NOTE
If you set Daylight Saving Time, the machine automatically sets the standard time of the machine one hour forward at the specified date and time.
4.
Press [OK].

NOTE
On the Settings/Registration screen, you can also specify to automatically synchronize the date and time with a server on the network using SNTP. (See "Settings Common to TCP/IPv4 and TCP/IPv6.")