Technical data

Setting System Time
6.2 Setting Time Zone Information on OpenVMS Alpha Version 7.3 and Later
This results in the following (or similar) display:
AUTO_DLIGHT_SAV is set to "1".
OpenVMS will automatically change to/from Daylight Saving Time.
(in timezones that use Daylight Saving Time)
LOCAL TIME ZONE = EASTERN / US -- DAYLIGHT TIME
LOCAL SYSTEM TIME = 4-OCT-2000 11:14:00.51
(EDT)
TIME DIFFERENTIAL FACTOR = -4:00
TIME ZONE RULE = EST5EDT4,M4.1.0/02,M10.5.0/02
If the AUTO_DLIGHT_SAVE system parameter is set to 0, you may receive a
display similar to the following:
AUTO_DLIGHT_SAV is set to "0" and DTSS is not in use.
You will have to manually change to/from Daylight Saving Time.
You can do this by executing SYS$MANAGER:UTC$TIME_SETUP.COM,
or you can use SYS$EXAMPLES:DAYLIGHT_SAVING.COM.
LOCAL TIME ZONE = EASTERN / US -- DAYLIGHT TIME
LOCAL SYSTEM TIME = 4-OCT-2000 11:17:40.05
(EDT)
TIME DIFFERENTIAL FACTOR = -4:00
TIME ZONE RULE = EST5EDT4,M4.1.0/02,M10.5.0/02
You may also receive messages indicating that some time zone parameters are not
correctly set. If so, correct the time zone information and rerun the procedure.
6.2.2 Setting Time Zone Information
After ensuring that the required privileges are enabled (see Section 6.2), execute
the following command:
$ @SYS$MANAGER:UTC$TIME_SETUP
Do not include any parameters with this command. This results in the following
(or similar) display:
Configuring the Local Time Zone
TIME ZONE SPECIFICATION -- MAIN Time Zone Menu
1) AUSTRALIA 14) IRAN 27) ROK
2) BRAZIL 15) ISRAEL 28) SINGAPORE
3) CANADA 16) JAMAICA 29) SYSTEMV
4) CET 17) JAPAN 30) TURKEY
5) CHILE 18) LIBYA 31) UCT
6) CUBA 19) MET 32) UNIVERSAL
7) EET 20) MEXICO 33) US
8) EGYPT 21) NAVAJO 34) UTC
9) FACTORY 22) NZ-CHAT 35) W-SU
10) GB-EIRE 23) NZ 36) WET
11) GREENWICH 24) POLAND 37) ZULU
12) HONGKONG 25) PRC
13) ICELAND 26) ROC
0) GMT
Table 6–1 lists and describes the acronyms that appear in the Main Time Zone
Menu.
6–6 Setting System Time