Over the course of October, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 1:30 hours, implying an average day-over-day decrease of 2.9 minutes.
The shortest day of the month is October 31 with 10:12 hours of daylight; the longest day is October 1 with 11:42 hours of daylight.
Daily Hours of Daylight and Twilight in October
The number of hours during which the Sun is visible (black line), with various degrees of daylight, twilight, and night, indicated by the color bands. From bottom (most yellow) to top (most gray): full daylight, solar twilight (Sun is visible but less than 6° from the horizon), civil twilight (Sun is not visible but is less than 6° below the horizon), nautical twilight (Sun is between 6° and 12° below the horizon), astronomical twilight (Sun is between 12° and 18° below the horizon), and full night.
The earliest sunrise is at 7:12am on October 1; the latest sunset is at 6:54pm on October 1; the latest sunrise is at 7:51am on October 31; the earliest sunset is at 6:03pm on October 31.
Daylight savings time is observed in 2012 but it neither starts nor ends in October, so the entire month is in daylight time.
Daily Sunrise & Sunset with Twilight and Daylight Savings Time in October
The solar day over the course of the year 2012 . From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (solar, civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight savings time are indicated by the "DST" labels.
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