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June 18

Day 170 of 366 · ISO week 25 · Gemini · Spring (Northern Hemisphere)

June 18 is the 170th day of the year in the Gregorian calendar; 196 days remain until the year's end. It falls in spring (northern hemisphere) and under the astrological sign of Gemini.

Day of year
170
Days remaining
196
ISO week
25
Zodiac
Gemini
Season
Spring
Sun declination
+23.4°

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. June 18 ≈ +23.4°
+23° −23° +23.4°
Computed via Cooper's formula. Positive declination = Sun north of the celestial equator (Northern Hemisphere summer).

On June 18 the Sun's declination is approximately +23.4°. 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 June 18.

Position in the year

Position in the calendar year — day 170 of 366 (with 196 remaining)
JanFebMarAprMayJunJulAugSepOctNovDec Jun 18

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.

Notable births

Notable deaths

Numerical & calendrical curiosities

Day-of-year (170)2 × 5 × 17 · composite (no)
Days remaining (196)2^2 × 7^2
Date code DDMMYYYY18062026 · no palindrome in next 200 years
Sun declination+23.42° (Cooper approximation)
Distance from solstice2 days

Cross-references

The 18th of every other month

Adjacent days

Days nearby

Themes: waterloosally-ridemccartney-bday

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