🌅 Arecibo Sunrise & Sunset Calendar
🇵🇷 Puerto Rico · America/Puerto_Rico
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|
| 1 🌄 06:12 🌇 18:40 | 2 🌄 06:12 🌇 18:40 | 3 🌄 06:12 🌇 18:39 | ||||
| 4 🌄 06:12 🌇 18:38 | 5 🌄 06:13 🌇 18:37 | 6 🌄 06:13 🌇 18:36 | 7 🌄 06:13 🌇 18:35 | 8 🌄 06:13 🌇 18:35 | 9 🌄 06:13 🌇 18:34 | 10 🌄 06:13 🌇 18:33 |
| 11 🌄 06:14 🌇 18:32 | 12 🌄 06:14 🌇 18:31 | 13 🌄 06:14 🌇 18:30 | 14 🌄 06:14 🌇 18:29 | 15 🌄 06:14 🌇 18:29 | 16 🌄 06:14 🌇 18:28 | 17 🌄 06:15 🌇 18:27 |
| 18 🌄 06:15 🌇 18:26 | 19 🌄 06:15 🌇 18:25 | 20 🌄 06:15 🌇 18:24 | 21 🌄 06:15 🌇 18:23 | 22 🌄 06:15 🌇 18:22 | 23 🌄 06:16 🌇 18:22 | 24 🌄 06:16 🌇 18:21 |
| 25 🌄 06:16 🌇 18:20 | 26 🌄 06:16 🌇 18:19 | 27 🌄 06:16 🌇 18:18 | 28 🌄 06:17 🌇 18:17 | 29 🌄 06:17 🌇 18:16 | 30 🌄 06:17 🌇 18:16 |
All times in local time for Arecibo (America/Puerto_Rico).
Shortening days in Arecibo through September 1977
Daylight draws in through September 1977 in Arecibo, Puerto Rico, moving from 12h 28m on the first days to 11h 58m on the last — a swing of about 30 minutes. That works out to roughly 7 minutes a week.
Look for the year's local extremes here: sunrise as early as 06:12 on September 1 and as late as 06:17 on September 28, with sunset from 18:16 (September 29) to 18:40 (September 1).
Daylight averages roughly 12h 13m per day across the month. It falls in northern-hemisphere autumn, which sets the overall pattern of these times. Handy for photographers, early risers, travellers and anyone timing their day to the light in Arecibo.
About the Arecibo Sunrise & Sunset Calendar
This calendar shows the sunrise and sunset time in Arecibo, Puerto Rico for every day of September 1977. All times are shown in Arecibo's local time (America/Puerto_Rico), with daylight saving changes applied automatically.
Each day's cell shows the local 🌄 sunrise and 🌇 sunset time, so you can see at a glance how daylight grows and shrinks through the month — useful for photography, travel, prayer planning, gardening, fitness and organising your day around the sun.
How to use this calendar
- Search any city using the box at the top to jump to its full monthly calendar.
- Change month with the ← and → arrows above the grid.
- Print or save a clean copy with the 🖨️ Print button.
Frequently Asked Questions
What time does the sun rise in Arecibo in September 1977?
In September 1977, sunrise in Arecibo, Puerto Rico ranges from about 06:12 on September 1 (its earliest) to 06:17 on September 28 (its latest). Each day's exact time is in the calendar above.
What time does the sun set in Arecibo in September 1977?
Sunset in Arecibo, Puerto Rico during September 1977 runs from 18:16 on September 29 to 18:40 on September 1.
How much daylight does Arecibo get in September 1977?
Arecibo, Puerto Rico has between 12h 28m and 11h 58m of daylight per day in September 1977, decreases by about 30 minutes across the month.
Are the sunrise and sunset times for Arecibo accurate?
Times are calculated from the location's exact latitude, longitude and time zone using standard astronomical algorithms, accurate to about a minute. Local terrain such as hills or tall buildings can slightly shift when the sun actually appears or disappears.
What time zone are the Arecibo calendar times shown in?
All times are shown in Arecibo's local time, with daylight saving changes applied automatically, so you can read them directly with no conversion.
How do I view a different month?
Use the left and right arrows above the grid to move to the previous or next month; past and future months are both available.