Junos Space displays the time at the local PC's time zone, but the time is saved as UTC on the Junos Space host OS. See below for additional information on how time is displayed in Junos Space
Information on how time is displayed in Junos Space.
In Junos Space, the time is displayed as seen below: The time and date shown in the Junos Space interface corresponds to the Junos Space Host system. To see the time set on the Junos Space host from the command line, use the following command:
[root@space-000c ~]# date Wed Apr 30 14:17:31 UTC 2014
2019-05-27: added link to article on changing the time zone via the CLI