How long do NS records take to update?

Related questions

1. How do I transfer my domain to 000webhost?
2. How long do DNS TXT records take to propagate?
3. What happens when you flush the DNS?
4. How does DNS TXT record work?
5. Why is the DNS server not responding?
6. What is an A record in DNS?
7. How does reverse DNS work?
8. Can I have multiple TXT records?
9. How do DNS SRV records work?
10. How do I flush my router DNS?

Tags

1. #because
2. #internet
3. #setup
4. #registered
5. #domain
6. #newly
7. #propagation
8. #nameservers
9. #across
10. #changes
11. #expect
12. #effect
13. #network
14. #hours
15. #changed
16. #actual
17. #takes
18. #based
19. #locations