Should I share my Product Hunt product link on social media during PT or Europe peak hours?

Hi everyone. I'm about to launch my product and I was curious to know what was your strategy, just after launch, to gather people interested in your idea. I have already made a list of groups on different social media where there is a target audience that may be interested in checking out my product, however, I don't know what the most suitable time for posting is. I don't want to spam and ideally, I'd like to engage people in a conversation, so if I feel like getting the timing right is pretty important. I'm not sure if I should start sharing as soon as the Product is Live, although it'll still be 12:00am in the US, or wait until it's about 10:00am in the US. What do you think? :)