configuring server time zones

configuring server time zones

Our SDplus server is hosted in the PST time zone and all our agents work in the EST time zone.  Without changing the actual windows O/S time zone, is there a way to set a global time zone for SD plus so that SLAs are calculated by EST times?
 
Currently, our work around has been to add 3 hours to all the SLAs but I'd like to know if there's a better way.
 
Thanks!

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