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What is the close time on Kalshi?

Checked September 25, 2026 · 4 sources · plain-English definition, not financial advice

How it works on Kalshi

Kalshi's API documentation defines close_time as when trading stops. Once it passes, the market is closed, all order operations including cancellations are rejected, and resting orders are cancelled shortly after. The market then waits for determination.

Close time is not the result time. Kalshi's help center lists two kinds of closing, closure when the outcome occurs and closure at a listed date and time, and says the displayed close time may not equal determination time. The close time can also move: earlier for markets that can close early, or into the future if Kalshi extends the market.

Example: Kalshi's CPI contract terms set the last trading time at 8:29 AM ET on release day, one minute before the 8:30 AM ET data release. What to check: the grey text under "Pays out" on the market page, which Kalshi says describes the closing time in full, and whether an order you rely on will still be live when the news lands.

Related terms

• Expiration: The time set in a Kalshi contract's terms when its expiration value is read from the source; it can differ from the time trading closes.
• Early close: When a Kalshi market stops trading before its scheduled close because the outcome is already known, as its rules allow; payout follows determination.
• Resting order: A limit order, or its unfilled part, waiting in a Kalshi order book; it fills only when someone trades against it and can be canceled at no cost.
• Settlement: The step after a Kalshi market's result is determined, when each winning contract is paid $1 into your cash balance.

See also

Kalshi odds today · New Kalshi markets this week

Sources

1. Market Lifecycle, Kalshi API documentation, accessed September 25, 2026
2. Timeline and Payout, Kalshi Help Center, March 10, 2026
3. Market FAQs, Kalshi Help Center, April 12, 2026
4. CPI contract terms, Kalshi, accessed September 25, 2026

Checked September 25, 2026. Kalshi changes fees, rules, funding options and limits; the market's rules, the order ticket and Kalshi's help center are the final word.

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