Iftar Time for Louisville Today

Tuesday, March 10th, 2026 · 21st Ramadan 1447H

Iftar Time Today

19:43

Iftar in Louisville, Kentucky, EST/EDT, using NOAA algorithms

Sehri Ends

06:35

When fasting begins today

MWL Method

Uses the Muslim World League standard (18° astronomical twilight), widely accepted globally.

Ramadan Essentials

Check current options to enhance your Ramadan experience

How Are These Times Calculated?

Iftar time in Louisville is based on the astronomical sunset at 38.2°N, 85.6°W. This timing already accounts for atmospheric refraction, marking the moment the sun appears to dip below the horizon.

Sunset Calculation: Times are generated using precise astronomical calculations based on Louisville's latitude, longitude, elevation, and timezone.
Optional Buffers: Communities can apply +3, +5, or +15 minute safety margins if desired, though these are for personal or local preference rather than necessity.

Local Confirmation: While our Iftar times are accurate, we recommend checking with your local mosque for any community-specific adjustments or moon sighting variations.

Today's Fast In Louisville

11h 41m
Today's fasting duration

Today's fast in Louisville lasts 11h 40m, which is approximately 100 minutes longer than at the start of Ramadan. Fasting hours are increasing gradually as daylight lengthens in the spring season.

How Your Location Affects Fasting

174m
Elevation
+5m
Daily fasting change
38.2°
Latitude

At 38.2°N and 174m elevation in the New_York timezone, Louisville is in the temperate zone, where seasonal daylight changes are noticeable. During Ramadan in spring, fasting hours increase by about 5 minutes each day. Your elevation adds roughly 0.6 minutes to sunset timing.

By mid-Ramadan (day 15), you'll have gained an extra 75 minutes of fasting compared to the first day. Compared to Lexington at 38.0°N, this results in about 0 minutes of difference. These gradual daily changes are a defining feature of fasting in Louisville.

Why Iftar Times Differ Between Cities

Louisville's sunset is approximately 2 minutes earlier than Indianapolis, primarily due to longitude differences between the cities.

±2mins
earlier

Louisville's sunset is approximately 6 minutes later than Dayton, primarily due to longitude differences between the cities.

±6mins
later

Louisville's sunset is approximately 7 minutes earlier than Clarksville, primarily due to longitude differences between the cities.

±7mins
earlier

Daily Sunset Progression In Louisville

In Louisville, sunset shifts slightly. Specifically, today's sunset occurs 1m later than yesterday.

Tomorrow's fast will be approximately 5 minutes longer than today in Louisville, following the seasonal daylight pattern at 38.2° latitude. This daily progression is characteristic of Louisville's temperate latitude position, where seasonal astronomical shifts directly affect fasting duration throughout Ramadan.

How Iftar Times Work

Atmospheric Refraction

Earth's atmosphere bends light, causing the sun to appear slightly higher on the horizon than its actual position. This atmospheric refraction effect is already accounted for in our calculations, giving you the precise moment when the sun appears to cross below the horizon.

Louisville's Elevation

At 174m above sea level, Louisville's elevation affects when sunset occurs. Higher elevations see the sunset slightly later than lower areas. This elevation adjustment is included in all our calculations.

Astronomical Calculations

Iftar times are calculated using precise astronomical algorithms from NOAA, based on Louisville's exact location (38.17°N, 85.65°W), timezone (America/New_York), and the current season to determine accurate sunset times throughout Ramadan.

Nearby Towns and Cities

Frequently Asked Questions

What is the Iftar time in Louisville today?

Iftar in Louisville today is the astronomical sunset time shown at the top of this page. Check the precise time, which is calculated for Louisville's exact location (38.17°N, 85.65°W) at 174m elevation. The calculation uses the ISNA 15° method, which is standard across North America.

When does Sehri end in Louisville?

Sehri end time in Louisville marks when the fast begins in the morning. During Ramadan, this time shifts daily as sunrise moves earlier or later. The time shown on this page is calculated for Louisville's exact coordinates using the ISNA 15° method, though you can compare other calculation standards on this page.

How long is the fast in Louisville during Ramadan 2026?

At 38.2°N, Louisville experiences moderate seasonal variation in daylight, affecting fasting duration throughout Ramadan. Fasting hours in Louisville vary daily throughout Ramadan as sunset and Fajr shift with the season. The times shown on this page are calculated for Louisville's exact location so you can plan your fast accordingly.

Why does Iftar in Louisville differ from Lexington?

Compared to Lexington, Louisville has sunset 5 minutes earlier than Lexington due to its more westerly position, and 147m lower elevation results in a slightly earlier sunset. The primary cause is the longitude difference between the cities — roughly 4 minutes of time difference per degree of longitude. Louisville is at latitude 38.17°, while Lexington is at latitude 38.04°. Even small differences in latitude and elevation create measurable shifts in when sunset occurs.

Which calculation method should I use for Iftar in Louisville?

The ISNA 15° method is most commonly used by mosques in Louisville. However, the best method for you depends on your local mosque or Islamic authority. We provide multiple standards on this page: ISNA 15°, ISNA 15°, Umm al-Qura 18.5°, and Diyanet 20°. Check with your mosque to confirm which they recommend, then use that method from the options available above.