Thursday April 13, 1206
A date scroll with Latin text from โ€œThe Extremes of Good and Evilโ€ by Cicero, written in 45 BC.

April 13, 1206: Day of the Week

April 13, 1206 was the 103rd day of the year 1206 in the Gregorian calendar. There were 262 days remaining until the end of the year. The day of the week was Thursday.

The day of the week for April 13, 1206 under the old Julian calendar was Thursday. Did you notice the similarity with the Gregorian calendar?

If you are trying to learn French then this day of the week in French is jeudi.

A person born on this day will be 818 years old today. If that same person saved a Penny every day starting at age 6, then by now that person has accumulated $2,968.12 today.

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Here’s the April 1206 Gregorian calendar. You can also browse the full year monthly 1206 calendar.

April 1206
SunMonTueWedThuFriSat
      1
2345678
9101112131415
16171819202122
23242526272829
30      

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Zodiac & Birthstone

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

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April 13, 1206 by the Numbers

  • 299,004 days since April 13, 1206
  • 818 years, 7 months, and 21 days ago
  • 9,823 months since then
  • April 13 is in the 15th week of the year 1206 (ISO 8601)
  • 42,714 weeks ago
  • The year 1206 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 (April 13, 1206). 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.

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