- American Holidays – The United States celebrates many holidays—some that we share with other countries, and others that are uniquely American.
- Ancient Calendars – The National Institute of Standards and Technology (NIST) explores the history of ancient calendars.
- Congressional Calendars – Browse the calendars for both the House of Representatives and the Senate from the 104th Congress (1995-1996) forward.
- Current Economic Release Schedule – Calendar of important economic releases from the U.S. Department of Commerce.
- Daylight Saving Time Calendar – History of Daylight Saving Time, as well as a brief calendar of the time change.
- Federal Election Commission – Calendar of reports, filing dates, and meetings scheduled by the FEC.
- Federal Holidays – Search for dates of federal holidays by year.
- GPS Calendar – This calendar will help you convert a typical calendar day to either the Day of Year or GPS Week Number.
- Historic Events Calendar, with Lesson Plans – Calendar of historic events, with related lesson plans from the National Endowment for the Humanities.
- Introduction to Calendars – A brief explanation of calendars -- the different types of calendars, their history, and their evolution.
- NASA Space Calendar – The Space Calendar covers space-related activities and anniversaries for the coming year.
- Proclamations Issued by President Bush – Presidential proclamations to celebrate special days, weeks, and months.
- Senate Floor Schedule, Legislative Calendar, and Executive Calendar – View the floor schedule, Legislative calendar, and Executive calendar for the U.S. Senate.
- State Department International Events Calendar – International events scheduled by the State Department.
- Supreme Court - Calendar of Oral Arguments – Calendar of oral arguments open to the public at the Supreme Court.
- Tax Calendar for Small Businesses and Self-Employed – Tax calendar with dates that are important to small business owners and the self-employed.
- Time – Official Time in Your Area – This public service is provided by the National Institute of Standards and Technology (NIST), and the U.S. Naval Observatory (USNO). Readings from the clocks of these agencies contribute to world time.
- Today in History – The Library of Congress presents memorable events for every day of the year.
- U.S. House Proceedings for the Last 7 Legislative Days – Clerk's Floor Summary
- U.S. Time Zones – Explore the history of standard time zones in the United States, as well as a list of all observed time zones.
- Voter Registration Deadlines, by State – State-by-State registration deadlines and where to send voter registration form.
- World Time Zone Map – View HTML or PDF versions of time zones across the world.
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