You can assume there is a payout for somebody on the hour every hour of the day. If you want to avoid messing with other's payouts, you have two options: 1. Pay attention and you can learn by watching your leader board who moves up at what times or who ends up in top 3 consistently at certain times. 2. Look for your shardmates on here or with help from people in your guild and communicate with them and ask when their payout times are.
Shard chats on discord or Line are common these days. GL.