thold Previous UP incorrect

[PhantomPhreak]

I set up thold to down time notification but i notice the Previous UP time is correct
this is what it show me which is incorrect

this from the emial template
Host Previously UP for: <DOWNTIME>

actual email
Host Previously UP for: 736927d 17h 21m 10s


this is correct
when i recieve an email stateing server up
Host Previously DOWN for: 31m 3s



Host Previously UP for: 736927d 13h 41m 12s

thanks for the help