Tools like Blockchair give a rough sketch of Bitcoin halving, based on current mining rates and the 10-minute block addition rule. But, lets not carve these estimates in stone; they're mere projections, not exact truths. Mining speed sways due to a host of elements like network complexity tweaks and overall mining might. So, while these tools sketch an outline, pinpointing the exact halving day, let alone hour or minute, is a shot in the dark.
As Bitcoin and blockchain enthusiasts, we should understand foundational principles, rather than leaning entirely on prediction models. These forecasts, while handy, arent fail-safe. They're as precise as nailing the next raindrop's landing time
I think the best way is to simply just keep a week in your mind when the halving will occur instead of thinking about the specific day and hour, block times can't be delayed too much for the event to be pushed more than a week in my opinion, so having an estimate of a specific week should be enough. Besides, people will already start buying when the halving is to occur after a month, and the market might start moving from there.
So those who are asking for the exact time or day or week or month should simply just have an eye on the market and just remember the month of the halving because things will start escalating a month before it and we will witness something positive even before it reaches.