One middle part of a local day
The published Drik Panchang explanation defines Abhijit Muhurta as the eighth of fifteen equal periods between local sunrise and sunset. First find the length of daylight, then divide it by fifteen. Counting seven complete parts after sunrise gives the start of the eighth; counting one more gives its end. The same result can be stated as the midpoint of daylight plus or minus half of one part. It is a rule about a local daytime interval, not a change in the Sun’s physical motion.
A twelve-hour example makes the arithmetic simple: 06:00 sunrise and 18:00 sunset give 720 daylight minutes. One fifteenth is 48 minutes. Seven parts after sunrise is 11:36, and the eighth runs to 12:24. The midpoint is 12:00. Some online summaries claim an 11:40–12:20 result for the same example, but that is forty minutes rather than a fifteenth of twelve hours. This calculator follows the explicit fifteen-equal-part definition and shows every boundary, so the chosen arithmetic can be audited.
Why the clock shifts
Neither sunrise nor sunset is fixed at 06:00 or 18:00. The selected longitude and civil offset shift the clock labels, while latitude and season change the length of daylight. New Delhi’s 20 September 2026 almanac gives roughly 06:08 sunrise and 18:20 sunset and lists Abhijit around 11:50–12:39. That example is nearly forty-nine minutes long. A local result should be checked using the same place, civil date, time-zone rule, and sunrise convention rather than against a generic noon table.
Daylight midpoint is calculated here as the average of sunrise and sunset. The Sun’s actual upper transit can differ slightly from that average when its declination changes across the day or when a particular rise/set convention is used. The result should therefore be called a sunrise-to-sunset midpoint, not a claim to a separately solved transit event.
Wednesday and other use cautions
Drik Panchang states that Abhijit is not suitable on Wednesday and also names activities for which it does not recommend this interval. Those are traditional selection rules attached to its almanac. The geometry of the eighth segment still exists on a Wednesday; this site displays it with a clear caution rather than hiding the arithmetic. Neither a displayed segment nor an online label guarantees that an activity succeeds or fails.
Other panchangas may use different definitions of sunrise, a local horizon, or another way to classify an interval that overlaps a conflicting rule. A visitor using the tool for a specific religious calendar or ceremony should compare the relevant regional almanac and practitioner guidance. This guide is an explanation of a calculable timing convention and does not give a personal electional judgment.
What the browser computes
Enter a local Gregorian date, geographic coordinates, and a fixed offset from UTC. Astronomy Engine supplies sunrise and sunset for an observer at zero metres under a standard-refraction model. The page divides the elapsed milliseconds into fifteen equal parts, preserves exact boundaries in CSV, and rounds only display labels to the nearest minute. An invalid date, unsuitable offset, or missing sunrise or sunset returns an explicit error. The local inputs stay in the browser and are not sent to the companion app.
References: Drik Panchang, Abhijit method and Wednesday caution; Drik Panchang Wednesday example; New Delhi day panchang; Astronomy Engine 2.1.19.