August 11, 1509: Day of the Week
August 11, 1509 was the 223rd day of the year 1509 in the Gregorian calendar. There were 142 days remaining until the end of the year. The day of the week was Wednesday.
The day of the week for August 11, 1509 under the old Julian calendar was Saturday. Did you notice the difference with the Gregorian calendar?
If you are trying to learn Japanese then this day of the week in Japanese is Suiyōbi.
A person born on this day will be 515 years old today. If that same person saved a Cent every day starting at age 3, then by now that person has accumulated $1,872.25 today.
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Here’s the August 1509 Gregorian calendar. You can also browse the full year monthly 1509 calendar.
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Zodiac & Birthstone
Leo is the zodiac sign of a person born on this day. Peridot is the modern birthstone for this month. Diamond is the mystical birthstone from Tibetan origin that dates back over a thousand years.
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August 11, 1509 by the Numbers
- 188,321 days since August 11, 1509
- 515 years, 7 months, and 8 days ago
- 6,187 months since then
- August 11 is in the 32nd week of the year 1509 (ISO 8601)
- 26,903 weeks ago
- The year 1509 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 (August 11, 1509). 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.
Now 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.