Interesting. Gonna try this out. Thanks.
UPDATE: This is my battery usage just now. I never thought I would reach 6 hours plus and still have a little over 20% left.
This proves to me that my usage is affected greatly by 'Date & Time' when it's set to automatic:
Glad to hear it worked out for you.
I already knew about this, so mine was turned off since day 1.
We should have some sort of thread that has a list of options that can improve battery. That would be a great Sticky in this section.