Albino Dragon doesn’t have a “normal respawn time” (like X minutes/hours).
It uses a Server Boot-based spawn check system:
Find the Server Boot time (this happens shortly after server save, a few minutes before the server goes online).
Add 10 minutes to the Server Boot time → that’s the first possible spawn check.
After that, spawn checks happen every 30 minutes (at those exact timestamps).
Example: if Server Boot is XX:02:55
How long it stays: if it spawns and nobody kills it, it despawns after 30 minutes.
Where it can appear: there are 5 spawn points (Ankrahmun Dragon Lair, Dragonblaze Peaks, POI Dragon Lair, Hellgorge/Goroma and Fenrock Dragon Lair).
How to discover Server Boot time: Install Tibia Observer and set your character to get notifications for Mini World Changes like Nightmare Isles and Spirit Gate, which are usually active everyday. You will get the exact boot timestamp daily with notifications after server save.
You can also check using Check Helper from TibiaLight:
https://www.tibialight.com/check-helper
There you also have the option if you are looking for the Mystic Jaguar.
Source: TibiaLight