Countdown

just how many seconds there are in

4 days, 16 hours and 13 minutes

I have to confess that this is a puzzle that has occupied my mind for many a long year. I have spent countless hours poring over dusty tomes and manipulating the most fantastic and arcane devices imaginable, in order to divine these most ancient and mysterious secrets of the universe. Secrets clouded beneath a cloak of shadowy mists. Now, finally having unravelled the secrets of time, I can reveal, categorically, without a shadow of a doubt, except for inept calculation errors, that the answer to this most enigmatic of questions is: