I'm trying to figure out if there's a way to track if the current device date is within a specific time range and get notified.
Example:
Say I have a start time of December 2, 2014 at 11AM and an end time of December 2,2014 at 1PM. I want to observe the [NSDate date] and update the UI if the current date enters the date range.
Is this possible? Can I do this with KVO?
Thanks!
EDIT: My question isn't about doing a check. My question is more about something like "firedate" which gets fired when I enter a time range!