Dates on all Google apps wrong

[Randall Atha]

I have a LG tablet, the play store won't download apps suddenly, I went into app manager and noticed all Google apps from chrome to play it has the instal date as July 1970! No other apps like Facebook or photo. Director shows this. What's wrong here? Oh I'm also running Android 5

 

[B. Diddy]

Welcome to Android Central! Try going to Settings>Apps, select Google Play Store, and Clear Cache/Clear Data, then Force Stop. Do the same for Download Manager. Now try again.