When Does The Post Office Close Today 2025 Calendar. Though 2025 has just begun, calendars are already being marked with holiday observances. Here is a full list of days when the post office will be closed due to holidays & events.

These are the holidays in 2025 when the usps will be closed. Here are which businesses will be open on new year’s eve and day for the end of 2024 and beginning of 2025.