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July 17

Day 199 of 366 · ISO week 29 · Cancer · Summer (Northern Hemisphere)

July 17 is the 199th day of the year in the Gregorian calendar; 167 days remain until the year's end. It falls in summer (northern hemisphere) and under the astrological sign of Cancer.

Day of year
199
Days remaining
167
ISO week
29
Zodiac
Cancer
Season
Summer
Sun declination
+21.0°

External references

Curated jump-off points to the major almanacs, encyclopaedias and primary sources for this date.

Wikipedia: this day →Britannica: this day →LoC: Today in History →History.com: this day →On-This-Day.com →BBC: On This Day →NYT: this day →Time and Date →NASA APOD archive →U.S. Naval Observatory →Wolfram|Alpha →Wikidata →Google Books →JSTOR →Internet Archive →
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Astronomy

Solar declination through the year — the Sun's apparent latitude on Earth. July 17 ≈ +21.0°
+23° −23° +21.0°
Computed via Cooper's formula. Positive declination = Sun north of the celestial equator (Northern Hemisphere summer).

On July 17 the Sun's declination is approximately +21.0°. At this latitude the Sun is north of the celestial equator, giving the Northern Hemisphere longer days than nights.

For specific rise/set times at your location, see the U.S. Naval Observatory, or the NASA APOD archive for any imagery published on a July 17.

Position in the year

Position in the calendar year — day 199 of 366 (with 167 remaining)
JanFebMarAprMayJunJulAugSepOctNovDec Jul 17

Holidays & observances

No widely-observed holidays catalogued for this day in our base set. See the external almanacs above for region-specific observances.

Events

A selection of widely-documented historical events that took place on this date. Years marked BCE follow standard astronomical convention.

No events currently catalogued for this day. External references may have more.

Notable births

No births currently catalogued for this day. External references may have more.

Notable deaths

No deaths currently catalogued for this day. External references may have more.

Numerical & calendrical curiosities

Day-of-year (199)199 · prime
Days remaining (167)167
Date code DDMMYYYY17072026 · no palindrome in next 200 years
Sun declination+21.00° (Cooper approximation)
Distance from solstice27 days

Cross-references

The 17th of every other month

Adjacent days

Days nearby

All days