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Polymarket US operates nearly 24/7, with a recurring weekly maintenance window every Thursday from 6:00–8:00 AM ET. Gold and silver markets follow the metals market instead: Sunday 6:15 PM ET to Friday 5:00 PM ET, with a daily break from 5:00 PM to 6:15 PM ET and holiday closures. See the Gold and Silver FAQs. Trading may also be temporarily suspended if technical issues, emergency maintenance, or other operational needs require action to maintain security, integrity, or orderly market operation.

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Emergency Maintenance

Trading may be paused without prior notice to protect market participants or ensure system stability. Service resumes once operational integrity is restored.

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Reporting Schedule

Each trading day ends at 5:00 PM Eastern Time (ET), including weekends. Daily market and operational reporting uses this cutoff for performance metrics, reconciliations, and regulatory recordkeeping.

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Compliance Notice

All trading activity is governed by the Polymarket US Exchange Rulebook, applicable U.S. regulations, and internal operational procedures. Trading availability may be adjusted when necessary to maintain compliance, transparency, and market integrity.