We have a problem with CurrentDate() function.
From time to time it changes to 1970.

We tried to install different versions of the Platform
(we found it on 8.3.4, now it runs on 8.3.5.1625).
Also tried 8.3.6.1977 - same problem.

Tried to update Ms SQL from 2008 to 2012.
Nothing helps.

Current OS Windows Server 2012 Standart.

Only service restart helps.

The client uses 1C almost 24/7 and it stops all thier processes.  

Could you please help us with this problem?

Looks like well-known platform error that's caused by 1C server working continuously for a long time.
Please, try to reload the 1C:Enterprise server. It should help. If it is, I suggest you set up the automatic server reload on daily basis.

Hi, Roman.

I think it's a bug #10159807.
If you have access to bugboard, you can read about it
And this bug was fixed in versions 8.3.6.2524 and 8.3.7.2008.