Here are some tips for Neopets:
The Snowager is asleep at:
6:00-7:00 AM NST
2:00-3:00 PM NST
10:00- 11:00 PM NST
The Coltzan's Shrine:
Speed: Every five min. after the hour
Defence: Every thenth min. after the hour
Strenght: Every thirty min. after the hour
Hit Points: Every hour of the Day
Level: Every 2 hours of the day (3:00, 5:00...)
Doubloons: Every 55 seconds after the hour
Employment Agency:
Every 10 min. (1:10, 1:20, ...)
The Igloo Garage Sale:
Sometime when the bookstore has no more books though the food store has a few overprieced items left.
Half Price Day:
On the 3ed of every month!