• Monday: 09:00 - 17:00
• Tuesday (today): 09:00 - 17:00
• Wednesday: 09:00 - 17:00
• Thursday: 09:00 - 17:00
• Friday: 09:00 - 17:00
• Saturday: 09:00 - 13:00
• Sunday: Closed

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🕗 United States Postal Service (USPS) hours in Islip, 11751

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Bulk Mail Account Balance, Bulk Mail New Permit, Greeting Card Services, PO Box Online, Passport Acceptance, Passport Photo, Pickup Accountable Mail, Pickup Hold Mail

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