Pfsense current time/date keep changing help!

[sherwinluissss]

Hello, i have pfsense running on a virtualbox machine, I don't know why the time of it keeps on changing but the date is okay.
The current date/time of my host computer is also okay. what is the possible reason with this? btw, i am using the latest version of pfsense.
My timezone is ASIA/MANILA PHT.