Bitcoin Halving Cycle Clock
Every number on this page is read from the Bitcoin blockchain and exchange price history. Where a value cannot be sourced it says "Unavailable" — nothing here is simulated, back-filled or placeholder data.
Four-Year Halving Epoch
Current epoch
#5
Block subsidy 3.125 BTC
Days since last halving
926
20 Apr 2024 · block 840,000
Blocks to next halving
75,737
Halving block 1,050,000
Days to next halving (projected)
523
≈ 08 Apr 2028 at 596.3s/block observed
Current 180-Day Post-Halving Window
Window
#6
180-day block since halving
Day in window
27 / 180
07 Oct 2026 → 05 Apr 2027
Days remaining in window
154
Closes 05 Apr 2027
Return inside this window
Unavailable
No daily close for the window start
A 180-day window is simply a fixed calendar block measured from the halving date. It is a way of comparing where we are in the epoch — not a prediction that history repeats.
Previous & Next Halvings
| # | Block | Date (UTC) | Subsidy | Price at halving | +180 days | 180d return | 180d max drawdown |
|---|---|---|---|---|---|---|---|
| 1 | 210,000 | 28 Nov 2012 | 25 BTC | Unavailable | Unavailable | Unavailable | Unavailable |
| 2 | 420,000 | Unavailable | 12.5 BTC | Unavailable | Unavailable | Unavailable | Unavailable |
| 3 | 630,000 | Unavailable | 6.25 BTC | Unavailable | Unavailable | Unavailable | Unavailable |
| 4 | 840,000 | 20 Apr 2024 | 3.125 BTC | Unavailable | Unavailable | Unavailable | Unavailable |
| 5 | 1,050,000 | 08 Apr 2028 (projected) | 1.5625 BTC | Not reached yet — no price statistics exist for a future window. | |||
Prices before an asset had continuous daily exchange history (2012 and 2016 halvings) are shown as unavailable rather than filled in from a secondary estimate.
180-Day Windows Across This Epoch
Nine windows cover roughly one full 1,458-day halving epoch. Windows that have not started carry no data by design.
Data Notes & Limits
- No daily exchange history covers the 2012 halving window, so its 180-day statistics are left unavailable.
- No daily exchange history covers the 2024 halving window, so its 180-day statistics are left unavailable.
- Block heights and halving dates are read from the Bitcoin blockchain. The next halving date is a projection from the observed block interval of the current epoch and will drift with hashrate.
- Post-halving windows are descriptive statistics of past price behaviour over four samples at most. They are not a forecast and are not used in the risk model.