What day of the week is this date?

Sunday June 17, 1145

June 17, 1145: Day of the Week

June 17, 1145 was the 168th day of the year 1145 in the Gregorian calendar. There were 197 days remaining until the end of the year. The day of the week was Sunday.

The day of the week for June 17, 1145 under the old Julian calendar was Sunday. 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 dimanche.

A person born on this day will be 872 years old today. If that same person saved a Cent every day starting at age 5, then by now that person has accumulated $3,167.06 today. That is, assuming this person is still alive and kicking.

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Here’s the June 1145 Gregorian calendar. You can also browse the full year monthly 1145 calendar.

June 1145
SunMonTueWedThuFriSat
     12
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10111213141516
17181920212223
24252627282930

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Zodiac & Birthstone

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

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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 (June 17, 1145). 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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