Good noon.But yeah, no one really says "good noon" in English-speaking contexts. "Tanghali" is noon, but it is not said only at exactly noon. It is more or less said starting from maybe around 11:30am (almost noon) to maybe a little past 1:00pm; i.e. around lunch time. It can also be said as a joke to someone who is late (e.g. to work) even when it's not yet noon.