I ran into the same problem that chavanmu ran into, however, the time sync is already set up for my workstation and the vCO appliance.
I verified that the time and timezone are in sync between client and server (UTC)
I am running vCO appliance 5.1.1.0
and even when a simple "Test Workflow" with Server.log("hi"); is executed, nothing shows up in the Logs or Events.
When looking at /opt/vmo/app-server/server/vmo/log/server.log on the vCO appliance though, I see the following:
2013-06-03 15:58:14.231+0000 INFO [SecurityTokenServiceImpl] Successfully acquired token for user: user
2013-06-03 15:58:14.426+0000 INFO [SecurityTokenServiceImpl] Successfully acquired token for user: {Name: user, Domain: System-Domain}
2013-06-03 15:58:14.439+0000 INFO [Execution] Executing workflow 'Test workflow'
2013-06-03 15:58:15.510+0000 INFO [SCRIPTING_LOG] [Test workflow (6/3/13 15:58:14)] hi
Would there be another cause that is not allowing me to see the Logs/Events?
Much appreciated,
Elley Cho