Is 20 weeks classed as 5 months old?

Hi everyone

May seem like a silly and random question, but my rabbit is 20 weeks old on Tuesday, is this counted as months or do you go from the date born, for example he was born 29 Jan, would you do 29th of each month as a month? if that makes any sense? would appreciate help. Thanks.

yep he would be 5 months.

Thanks very much, I know it seemed like a stupid question but needed to check as some people don't cont 4 weeks as a month, I do myself but just needed to be sure.

Sounds right to me :-)