Hi guys.

I just want to ask about resignation period, if somebody here can help advise.

Currently I'm employed as a manager in a small SME company for more than 7 years now.
Previously right after MCO was announced in March, the company immediately decided to slash all employees' salary by 50% and force us to work only half of the total days per month.
The pay cut is still being implemented even now, without employees black & white consent.
Recently i have been seriously planning to resign and had casually ask HR about the tender notice required.
HR replied that as per contract i have to serve 3 months notice because I'm manager level.

But i wonder, if they cut my salary 50% doesn't that mean they have breached my employment contract? So do I still have to adhere to the 3 months notice period?

Btw I'm planning to give one month notice only no more no less. I'm not that heartless to give 24 hour notice.