Recognised as Date
24 August 1099
- Thursday
- Q3
- Common year
- Week 34
- Virgo
24 August 1099 falls on a Thursday in the proleptic Gregorian calendar, which did not yet exist at the time. It is day 236 of 365 in 1099, falling in week 34 and quarter 3. Its Unix timestamp is -27,465,782,400. A new moon falls on this day.
Calendar position
Day of the weekThursdayproleptic Gregorian; contemporaries used the Julian calendar and would have named a different day
Day of the month24th
Day of the year236 of 365
Days remaining in the year129
Days elapsed in the year235
ISO week numberWeek 34ISO 8601, weeks start on Monday
Week of the month4th
Occurrence in the month4th Thursday
QuarterQ3 1099
Year1099
Days in the month31
Leap yearNo, 365 days
This date in other formats
ISO 86011099-08-24
British (D/M/Y)24/08/1099
American (M/D/Y)08/24/1099
Long formThursday 24th August 1099
RFC 2822Thu, 24 Aug 1099 00:00:00 GMT
Compact10990824
In wordsthe 24th of August, one thousand and ninety-nine
Julian calendar equivalent18 August 1099the date contemporaries would have written, before the Gregorian calendar existed
This date in other calendars
Hebrew28 Av 4859the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)28 Ramadan 492 AHthe tabular reckoning; the calendar in religious use begins each month on an actual crescent sighting, so expect a day either way
Persian (arithmetic)2 Shahrivar 478the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die401,272days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp-27,465,782,400seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)-27,465,782,400,000
Relationship to the epoch317,891 days before the Unix epoch
Julian Day Number2,122,697midnight UTC
Days since 1 January 1900-292,324
Days since 1 January 2000-328,848
Moon phase
PhaseNew moonthe instant falls on this UTC day; in time zones far enough east or west the local date is a day either side
Illuminated at 12:00 UTC0%≈to about 1%, by Meeus
Waxing or waningWaning
Moon age at 12:00 UTC28.9 dayssince the previous new moon
This new moon24 August 1099
Next new moon23 September 1099
Previous full moon9 August 1099
Next full moon8 September 1099
PrecisionDates onlybefore 1700 or after 2150 the Earth's rotation is not known well enough to give a time, and a phase near midnight can land a day either side
Relative to today
These values depend on today’s date and change daily.
Today19 September 2026
Days ago338,606 days
In other terms927 years, 19 days and 6 hours
Weeks48372.3 weeks ago
Anniversary this year26 days ago
Years elapsed927 complete years
Seasons & signs
Zodiac signVirgoEarth sign
Chinese zodiac yearRabbitthe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Summermeteorological seasons, by whole months
Season (Southern Hemisphere)Winter
Easter Sunday that year16 April 1099
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Adjacent days
The same day in other years
Nerdulate something else
Nothing in mind? Surprise me · today’s page