Timing of 60 day vs 30 day notice to vacate near end of lease

[Mark Aqua]

I've done lots of searching and couldn't find an answer... any help would be appreciated!

I have a lease ending in February that will switch to month to month March 1st. The lease requires 60 day notice to terminate the lease and 30 days notice when it is month to month. 

Can I give 30 days notice to terminate during the month of February for a vacate date the end of March? Or does the month to month lease have to start March 1st then I give them 30 days notice and they stay to the end of April? 

I would give 60 day notice today but I've been waiting on notification from Hud on approving a rent increase or not. I'm assuming it will not be approved.

Thanks in advance for any help you can offer!