« first day (1159 days earlier)      last day (869 days later) » 

Knight
Knight
06:25
@SirArthur7 Hello!
 
3 hours later…
Sir Arthur7
Sir Arthur7
09:52
Hi :)
:: chemistry.stackexchange.com/q/24405/83758 edited, o
@Martin-γƒžγƒΌγƒγƒ³ Question is definitely HW but whether you want to keep it for the answer is up to you.

« first day (1159 days earlier)      last day (869 days later) »