You have to search for values between 86400 and something lower, like 86000. 86400 represents the number of seconds in a 24-hour period. Since the counter starts at that number and immediately begins counting down after you collect the reward at the end of a TLSQ, you have to search through a range of values until you narrow it down to the RAM address(es) you're looking for.
Update to this: it seems that Jam City goes through periods where they increase and decrease the duration and frequency of various events every few months or so. It's possible, but not guaranteed that this streak of multiplayer events could end soon. Nobody knows for sure though. It's completely up to JC and there's nothing we can do about it for the time being.