Question Date and time not updating even after replacing CMOS battery

[Togrof]

My pc lately is not booting up after a cold restart i mean if i switch on my pc after a long interval it is not booting up,pc lights up and fans are spinning but no signal on monitor...but after force restart with button it boots up and eaverything works fine but again date and time is not updated...its happening everytime...i have even replace the CMOS battery but problem remains the same...plz hepl...
MSI Z170 gaming m5 mobo
Core i5 6600k
Corsair 16 gb ram
WD 240 gb ssd
WD 1tb hard disk
MSI GTX 970 gpu
Antec 750 watt gold psu

 

[rocktalkrock]

Has your motherboard been updated to the latest BIOS release.

 

[Togrof]

Has your motherboard been updated to the latest BIOS release.

No i haven't updated the BIOS since i purchased the mobo...its stock BIOS...but do you think that's the cause of this issue...