Recognised as Date
1 August 1031
- Monday
- Q3
- Common year
- Week 31
- Leo
1 August 1031 falls on a Monday in the proleptic Gregorian calendar, which did not yet exist at the time. It is day 213 of 365 in 1031, falling in week 31 and quarter 3. Its Unix timestamp is -29,613,686,400.
Calendar position
Day of the weekMondayproleptic Gregorian; contemporaries used the Julian calendar and would have named a different day
Day of the month1st
Day of the year213 of 365
Days remaining in the year152
Days elapsed in the year212
ISO week numberWeek 31ISO 8601, weeks start on Monday
Week of the month1st
Occurrence in the month1st Monday
QuarterQ3 1031
Year1031
Days in the month31
Leap yearNo, 365 days
This date in other formats
ISO 86011031-08-01
British (D/M/Y)01/08/1031
American (M/D/Y)08/01/1031
Long formMonday 1st August 1031
RFC 2822Mon, 01 Aug 1031 00:00:00 GMT
Compact10310801
In wordsthe 1st of August, one thousand and thirty-one
Julian calendar equivalent26 July 1031the date contemporaries would have written, before the Gregorian calendar existed
This date in other calendars
Hebrew4 Av 4791the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)3 Shaban 422 AHthe tabular reckoning; the calendar in religious use begins each month on an actual crescent sighting, so expect a day either way
Persian (arithmetic)9 Mordad 410the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die376,412days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp-29,613,686,400seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)-29,613,686,400,000
Relationship to the epoch342,751 days before the Unix epoch
Julian Day Number2,097,837midnight UTC
Days since 1 January 1900-317,184
Days since 1 January 2000-353,708
Moon phase
PhaseWaxing crescentthe same phase everywhere on Earth at the same instant
Illuminated at 12:00 UTC17%≈to about 1%, by Meeus
Waxing or waningWaxing
Moon age at 12:00 UTC4.2 dayssince the previous new moon
Previous new moon28 July 1031
Next new moon26 August 1031
Previous full moon13 July 1031
Next full moon11 August 1031
Lit side, Northern HemisphereRight
Lit side, Southern HemisphereLeftthe same Moon seen from the other side of the equator; near the equator the lit side points up or down rather than to one side
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.
Today18 September 2026
Days ago363,465 days
In other terms995 years, 41 days and 6 hours
Weeks51923.6 weeks ago
Anniversary this year48 days ago
Years elapsed995 complete years
Seasons & signs
Zodiac signLeoFire sign
Chinese zodiac yearGoatthe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Summermeteorological seasons, by whole months
Season (Southern Hemisphere)Winter
Easter Sunday that year17 April 1031
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