Tuesday, March 10th, 2026 · 21st Ramadan 1447H
Iftar Time Today
Iftar in Rantau Prapat, Sumatera Utara, WIB, using NOAA algorithms
Sehri Ends
05:19
When fasting begins today
MWL Method
Uses the Muslim World League standard (18° astronomical twilight), widely accepted globally.
Iftar time in Rantau Prapat is based on the astronomical sunset at 2.3°N, 100.0°E. This timing already accounts for atmospheric refraction, marking the moment the sun appears to dip below the horizon.
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 Rantau Prapat lasts 12h 5m, which is approximately 20 minutes longer than at the start of Ramadan. Fasting hours are remaining stable, as equatorial regions have consistent day length.
At 2.3°N and 8m elevation in the Jakarta timezone, Rantau Prapat is in the temperate zone, where seasonal daylight changes are noticeable. During Ramadan in spring, fasting hours increase by about 1 minutes each day. Your elevation adds roughly 0.0 minutes to sunset timing.
By mid-Ramadan (day 15), you'll have gained an extra 15 minutes of fasting compared to the first day. Compared to Tanjungbalai at 3.0°N, this results in about 3 minutes of difference. These gradual daily changes are a defining feature of fasting in Rantau Prapat.
Rantau Prapat's sunset is approximately 3 minutes earlier than Padangsidempuan, primarily due to longitude differences between the cities.
Rantau Prapat's sunset is approximately 4 minutes earlier than Tebingtinggi, primarily due to longitude differences between the cities.
Rantau Prapat's sunset is approximately 6 minutes later than Dumai, primarily due to longitude differences between the cities.
In Rantau Prapat, sunset remains virtually unchanged. Specifically, today's sunset occurs 0m at the exact same time as yesterday.
Tomorrow's fast will be approximately 1 minute longer than today in Rantau Prapat, following the seasonal daylight pattern at 2.3° latitude. This daily progression is characteristic of Rantau Prapat's equatorial latitude position, where seasonal astronomical shifts directly affect fasting duration throughout Ramadan.
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.
At 8m above sea level, Rantau Prapat'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.
Iftar times are calculated using precise astronomical algorithms from NOAA, based on Rantau Prapat's exact location (2.33°N, 100.05°E), timezone (Asia/Jakarta), and the current season to determine accurate sunset times throughout Ramadan.
Iftar in Rantau Prapat today is the astronomical sunset time shown at the top of this page. Check the precise time, which is calculated for Rantau Prapat's exact location (2.33°N, 100.05°E) at 8m elevation. The calculation uses the Umm al-Qura 18.5° method, which is followed across SE Asia.
Sehri end time in Rantau Prapat 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 Rantau Prapat's exact coordinates using the Umm al-Qura 18.5° method, though you can compare other calculation standards on this page.
Being near the equator at 2.3°, Rantau Prapat experiences relatively consistent fasting hours year-round, with minimal seasonal variation compared to other latitudes. Fasting hours in Rantau Prapat vary daily throughout Ramadan as sunset and Fajr shift with the season. The times shown on this page are calculated for Rantau Prapat's exact location so you can plan your fast accordingly.
Compared to Tanjungbalai, Rantau Prapat has sunset 1 minute later than Tanjungbalai due to its more easterly position, and being further south means it has shorter fasting days during Ramadan. The primary cause is the longitude difference between the cities — roughly 4 minutes of time difference per degree of longitude. Rantau Prapat is at latitude 2.33°, while Tanjungbalai is at latitude 2.97°. Even small differences in latitude and elevation create measurable shifts in when sunset occurs.
The Umm al-Qura 18.5° method is most commonly used by mosques in Rantau Prapat. However, the best method for you depends on your local mosque or Islamic authority. We provide multiple standards on this page: Umm al-Qura 18.5°, 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.