Setting a time zone in SR OS allows for times to be displayed in the local time rather instead of UTC. SR OS has both user-defined and system-defined time zones.
A user-defined time zone has a user-assigned name of up to four printable ASCII characters in length and is unique from the system-defined time zones. For user-defined time zones, the offset from UTC is configured as well as any summer time adjustment for the time zone.
SR OS includes multiple commands to control the presentation of times in either UTC or local time zone format. For a CLI session, the environment variable time-display may be set to indicate UTC or local time zone. This setting only affects time strings shown during that specific CLI session. In addition, a global setting of config>system>time>prefer-local-time can be used to control time strings for objects with larger scope that a single CLI session, including the following:
log filenames and log header information
times in rollback information
times in rollback and configuration files header information
times related to CRON scripts
times in the event handler system
times in NETCONF and gRPC date-and-time leafs
A separate control per log file controls the format of the time strings on the event recorded into the logs (separate from the log filename and header information). Use the config>log>log-id>time-format command to set these time strings.
The SR OS system-defined time zones are listed in Table: System-defined time zones , which includes both time zones with and without summer time correction.
Acronym |
Time zone name | UTC offset |
|---|---|---|
Europe |
||
GMT |
Greenwich Mean Time |
UTC |
BST |
British Summer Time |
UTC +1 |
IST |
Irish Summer Time |
UTC +1* |
WET |
Western Europe Time |
UTC |
WEST |
Western Europe Summer Time |
UTC +1 |
CET |
Central Europe Time |
UTC +1 |
CEST |
Central Europe Summer Time |
UTC +2 |
EET |
Eastern Europe Time |
UTC +2 |
EEST |
Eastern Europe Summer Time |
UTC +3 |
MSK |
Moscow Time |
UTC +3 |
MSD |
Moscow Summer Time |
UTC +4 |
US and Canada |
||
AST |
Atlantic Standard Time |
UTC -4 |
ADT |
Atlantic Daylight Time |
UTC -3 |
EST |
Eastern Standard Time |
UTC -5 |
EDT |
Eastern Daylight Saving Time |
UTC -4 |
ET |
Eastern Time |
Either as EST or EDT, depending on place and time of year |
CST |
Central Standard Time |
UTC -6 |
CDT |
Central Daylight Saving Time |
UTC -5 |
CT |
Central Time |
Either as CST or CDT, depending on place and time of year |
MST |
Mountain Standard Time |
UTC -7 |
MDT |
Mountain Daylight Saving Time |
UTC -6 |
MT |
Mountain Time |
Either as MST or MDT, depending on place and time of year |
PST |
Pacific Standard Time |
UTC -8 |
PDT |
Pacific Daylight Saving Time |
UTC -7 |
PT |
Pacific Time |
Either as PST or PDT, depending on place and time of year |
HST |
Hawaiian Standard Time |
UTC -10 |
AKST |
Alaska Standard Time |
UTC -9 |
AKDT |
Alaska Standard Daylight Saving Time |
UTC -8 |
Australia |
||
AWST |
Western Standard Time (such as Perth) |
UTC +8 |
ACST |
Central Standard Time (such as Darwin) |
UTC +9.5 |
AEST |
Eastern Standard/Summer Time (such as Canberra) |
UTC +10 |