Tuesday January 5, 1221
A date scroll with Latin text from “The Extremes of Good and Evil” by Cicero, written in 45 BC.

January 5, 1221: Day of the Week

January 5, 1221 was the 5th day of the year 1221 in the Gregorian calendar. There were 360 days remaining until the end of the year. The day of the week was Tuesday.

The day of the week for January 5, 1221 under the old Julian calendar was Tuesday. Did you notice the similarity with the Gregorian calendar?

If you are trying to learn Japanese then this day of the week in Japanese is Kayōbi.

A person born on this day will be 803 years old today. If that same person saved a Half dollar every day starting at age 7, then by now that person has accumulated $145,496.50 today.

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Here’s the January 1221 Gregorian calendar. You can also browse the full year monthly 1221 calendar.

January 1221
SunMonTueWedThuFriSat
     12
3456789
10111213141516
17181920212223
24252627282930
31      

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Zodiac & Birthstone

Capricorn is the zodiac sign of a person born on this day. Garnet is the modern birthstone for this month. Emerald is the mystical birthstone from Tibetan origin that dates back over a thousand years.

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January 5, 1221 by the Numbers

  • 293,549 days since January 5, 1221
  • 803 years, 8 months, and 16 days ago
  • 9,644 months since then
  • January 5 is in the 1st week of the year 1221 (ISO 8601)
  • 41,935 weeks ago
  • The year 1221 is not a leap year

Gregorian versus the old Julian calendar

A note to students, teachers, scholars and anyone else passionate about this topic. As stated in the front page, this website is using the Gregorian calendar as the basis for all “day of the week” computation whether or not the Gregorian calendar is relevant for the date in question (January 5, 1221). Educators should point out the primary reason why Pope Gregory XIII introduced a new calendar system in October 1582. That is, to make the computation for the annual date of Easter more accurate since it is the foundation of the Christian faith.

Even with that purpose in mind, the Gregorian calendar too will become out of sync. It has a known approximation error of about one day for every 7,700 years assuming a constant time interval between vernal equinoxes (which is not true). This is better compared to the one day for every 128 years error of the Julian calendar.

Share InfoNow try another date like anniversaries, birthdays of someone you know or any other date that is special to you. Don’t forget to share the info to your friends, loved ones or social media followers. Who knows, they might appreciate and thank you for it.