Why should we reboot Netscaler after 497 days online

NetScaler
Question:

Why should we reboot Netscaler after 497 days online?

Answer:

For  FreeBSD, uptime is calculated with 1/100s precision and stores in a 32 bit int.
The limit is 497 days:  2^32 / 24 / 60 / 60 / 100 == 497.1.