Next   will occur sometime in spring of 2024.

The halving happens every 210,000 blocks. The 2024 halving will happen on block 840,000
https://t.co/xdLqmfP2Q1

After that the block reward will be reduced to 3.125 $BTC instead of 6.25  at present.
@Bitcoin https://t.co/Kas9Vv6TjM