Blue hour
Blue Hour in Frankfort Square, IL
Blue hour in Frankfort Square is the short twilight stretch when the sun sits between about −6° and −4° — just before sunrise and just after sunset — bathing the sky in even, cool blue light. Here are today's morning and evening blue hours for Frankfort Square, Illinois.
Sun, moon & horizon
14h 7m of daylight · computed locally with suncalc
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Frankfort Square's blue hour by the numbers — August 8, 2026
For August 8, 2026, Frankfort Square's evening blue hour falls between 8:21 PM – 8:30 PM, opening the moment the golden light gives out at 8:00 PM and closing at civil dusk (8:30 PM). Dawn shooters get the mirror image: a morning blue hour of 5:22 AM – 5:31 AM before sunrise at 5:53 AM.
The sequence to plan around is golden hour (7:21 PM – 8:21 PM) → sunset (8:00 PM, 292° WNW) → blue hour → dusk. At 41.5°N, with Frankfort Square moving through summer and the days are drawing in, these windows shift by a minute or two daily, so re-check the planner before a shoot. All values update to any date you choose.
Shooting blue hour in Frankfort Square: a field guide
Blue hour is the slice of twilight when the sun sits between about 6° and 4° below the horizon. Sunlight reaching the sky is scattered ozone-blue, shadows disappear, and the ambient level drops close to that of artificial lighting — which is why street lamps, windows and skylines photograph so well against a deep-blue sky. At Frankfort Square’s latitude (41.5°N), each blue hour lasts roughly 20–35 minutes, so check the planner above and arrive set up before the window opens.
It behaves differently from golden hour: golden light is warm, directional and casts long shadows — great for portraits and texture — while blue hour is cool, even and shadowless, suited to Frankfort Square's skyline and street scenes, long exposures and reflections. In the evening the order is golden hour → sunset → blue hour → dusk; mornings run in reverse, so blue hour comes first if you’re shooting dawn. See golden hour in Frankfort Square and dusk / civil twilight in Frankfort Square for the windows on either side, or the golden hour vs blue hour guide for the full comparison.
Camera settings that work here
- Tripod + remote or 2s timer. Exposures run 1–30 seconds once the sky deepens; hand-holding is over within minutes of sunset.
- Base ISO (100–400). Let the shutter stay open instead of raising ISO — blue hour rewards clean, long exposures.
- f/8–f/11 for front-to-back sharpness on Frankfort Square's skyline and street scenes; open up toward f/4 only if you need to freeze motion.
- White balance 3800–4500K (or shoot RAW and decide later) — auto WB tends to neutralize exactly the blue you came for.
- Bracket ±1 EV. The sky-to-lights contrast in Frankfort Square shifts fast through the roughly 20–35 minutes window; brackets keep highlights in the lamps and detail in the sky.
More for Frankfort Square
Gear for the shot
- Travel tripod Sharp frames in dim blue-hour light.
- Ball head Fast, precise recomposition on the tripod.
- Remote shutter release Avoid shake on long exposures.
- Headlamp Hands-free setup before dawn and after dusk.
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Blue hour in nearby cities
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Frankfort Square — frequently asked
- When is blue hour today in Frankfort Square?
- Frankfort Square has a morning blue hour ending around dawn and an evening blue hour beginning right after sunset. Today's exact windows are in the planner above.
- Is blue hour before or after golden hour?
- In the evening, golden hour comes first (ending at sunset), then blue hour. In the morning the order reverses: blue hour, then golden hour through sunrise.
- Do I need a tripod for blue hour in Frankfort Square?
- Usually yes — blue hour light is dim, so longer exposures and a tripod help keep images sharp and noise-free.