Is there any way to update post meta value each day (daily automaticaly) ?
For example my event has started each day at 10pm my current post meta is: 2015-01-01 10:00 next day i should change it to 2015-01-02 10:00 and again next day to 2015-01-03 10:00
Is there any way to update it automaticaly ?! if yes how is there any function daily ?