When are the block halvings? Here is the Schedule.
Halving 1: November 28, 2012 - Block Reward: 50 BTC
Halving 2: July 9, 2016 - Block Reward: 25 BTC
Halving 3: May 11, 2020 - Block Reward: 12.5 BTC
Halving 4: Around 2024 - Block Reward: 6.25 BTC
Halving 5: Around 2028 - Block Reward: 3.125 BTC <--- NEXT
Halving 6: Around 2032 - Block Reward: 1.5625 BTC
Halving 7: Around 2036 - Block Reward: 0.78125 BTC
Halving 8: Around 2040 - Block Reward: 0.390625 BTC
Halving 9: Around 2044 - Block Reward: 0.1953125 BTC
Halving 10: Around 2048 - Block Reward: 0.09765625 BTC
Halving 11: Around 2052 - Block Reward: 0.048828125 BTC
Halving 12: Around 2056 - Block Reward: 0.024 BTC
Halving 13: Around 2060 - Block Reward: 0.012 BTC
Halving 14: Around 2064 - Block Reward: 0.006 BTC
Halving 15: Around 2068 - Block Reward: 0.003 BTC
Halving 16: Around 2072 - Block Reward: 0.0015 BTC
Halving 17: Around 2076 - Block Reward: 0.00075 BTC
Halving 18: Around 2080 - Block Reward: 0.000375 BTC
Halving 19: Around 2084 - Block Reward: 0.0001875 BTC
Halving 20: Around 2088 - Block Reward: 0.00009375 BTC
Halving 21: Around 2092 - Block Reward: 0.000046875 BTC
Halving 22: Around 2096 - Block Reward: 0.0000234 BTC
Halving 23: Around 2100 - Block Reward: 0.0000117 BTC
Halving 24: Around 2104 - Block Reward: 0.00000585 BTC
Halving 25: Around 2108 - Block Reward: 0.00000292 BTC
Halving 26: Around 2112 - Block Reward: 0.00000146 BTC
Halving 27: Around 2116 - Block Reward: 0.00000073 BTC
Halving 28: Around 2120 - Block Reward: 0.000000365 BTC
Halving 29: Around 2124 - Block Reward: 0.000000182 BTC
Halving 30: Around 2128 - Block Reward: 0.000000091 BTC
[761px-AncientEgyptianRelief-BeeHieroglyph-ROM]