Service manual

Appendix K Timezone 200
Cyclades-TS Installation & Service Manual
APPENDIX K TIMEZONE
The content of the file /etc/TIMEZONE can be one of two formats. The first format is used when there is no
daylight saving time in the local time zone:
std offset
The std string specifies the name of the time zone and must be three or more alphabetic characters. The offset
string immediately follows std and specifies the time value to be added to the local time to get Coordinated
Universal Time (UTC). The offset is positive if the local time zone is west of the Prime Meridian and negative if it
is east. The hour must be between 0 and 24, and the minutes and seconds 0 and 59.
The second format is used when there is daylight saving time:
std offset dst [offset],start[/time],end[/time]
There are no spaces in the specification. The initial std and offset specify the standard time zone, as described
above. The dst string and offset specify the name and offset for the corresponding daylight savings time zone.
If the offset is omitted, it defaults to one hour ahead of standard time.
The start field specifies when daylight savings time goes into effect and the end field specifies when the change
is made back to standard time. These fields may have the following formats:
• Jn This specifies the Julian day with n between 1 and 365 February 29 is never counted even in leap
years.
• n This specifies the Julian day with n between 1 and 365. February 29 is counted in leap years.
• Mm.w.d This specifies day d (0 <= d <= 6) of week w (1 <= w <= 5) of month