First, there is considerable difference between an hour and a day of 24 hours. Second, the 555 timer is not at all suited for an application like this. You may want to start by reading this link and consider a circuit using a ripple counter. You are not going to get where it seems you want to go using a 555.
Thank you for the replies and the link given.
I am not exactly sure where I would use it yet, I just wanted to know if it was possible to achieve timscales like this with a 555.
No, and the problem with trying to use a 555 is in good part due to the 555 relying on R*C timing. When looking at long times the problem is capacitor leakage. So, that big problem is a matter more of capacitor leakage than the 555 itself. Just the nature of the beast.
Won't work! The OP mentions 1 hour to 24 hours of timing. I suggest you read this application note. Then place a focus on Frequently Asked Applications Questions around pages 6 & 7. Then note this:
7. What is the longest time I can get out of the timer?
Answer: Times exceeding an hour are possible, but not always
practical. Large capacitors with low leakage specs are quite
expensive. It becomes cheaper to use a countdown scheme (see
Figure 15) at some point, dependent on required accuracy. Normally 20 to 30 min. is the longest feasible time.