Tuesday September 5, 1105
A date scroll with Latin text from β€œThe Extremes of Good and Evil” by Cicero, written in 45 BC.

September 5, 1105: Day of the Week

September 5, 1105 was the 248th day of the year 1105 in the Gregorian calendar. There were 117 days remaining until the end of the year. The day of the week was Tuesday.

The day of the week for September 5, 1105 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 919 years old today. If that same person saved a Half dollar every day starting at age 3, then by now that person has accumulated $167,314.00 today.

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Here’s the September 1105 Gregorian calendar. You can also browse the full year monthly 1105 calendar.

September 1105
SunMonTueWedThuFriSat
     12
3456789
10111213141516
17181920212223
24252627282930

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Zodiac & Birthstone

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

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September 5, 1105 by the Numbers

  • 335,724 days since September 5, 1105
  • 919 years, 2 months, and 4 days ago
  • 11,030 months since then
  • September 5 is in the 36th week of the year 1105 (ISO 8601)
  • 47,960 weeks ago
  • The year 1105 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 (September 5, 1105). 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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