Scheduled Job is getting activated in wrong date and time in Cisco Prime Infrastructure

[BhaskarDS]

In the Cisco Prime Infrastructure, our end client scheduled a C6880 switch upgrade at 4:00 AM time, however the job got activated at 9:55 AM and also in different date. This resulted in switch getting rebooted (due to IOS upgrade) in operation hours.
 
I checked the time set for both the switch and the prime and both are set in same time.
 
Can anyone help me in what and all I need to check further on this.
 
Prime details are -
Cisco Prime Infrastructure
********************************************************
Version : 3.4.0
Build : 3.4.0.0.348
Critical Fixes:
        PI 3.4.1 Maintenance Release ( 1.0.0 )
Device Support:
        Prime Infrastructure 3.4 Device Pack 5 ( 5.0 )
        Prime Infrastructure 3.4 Device Pack 6 ( 6.0 )

[balaji.bandi]

Make sure all the devices are NTP synched and configured correctly, since most of the devices rely on NTP.