Pradosh Vrat 2027 List: 25 Dates, Weekdays and a May Split

Every Pradosh of 2027 (प्रदोष व्रत)

Pradosh Vrat is kept on Trayodashi, the thirteenth lunar day, once in each fortnight. Twenty-five Trayodashis have their evening in 2027: thirteen in the waning fortnight and twelve in the waxing one. For twenty-four of them the evening is clear-cut. For one, in May, two consecutive evenings each hold part of the tithi, and this page shows both rather than picking.

The test applied is the one the vrat’s name points to: the observance belongs to the evening whose pradosh hours fall in Trayodashi. The site’s generated festival tables print that window on every row as the span from sunset to 144 minutes after it, and the same span is used here, with New Delhi sunsets from the daily panchang. For each Trayodashi, each evening it touches gets a count of how many of those 144 minutes fall inside the tithi. An evening holding the whole window takes the vrat; failing that, the only evening holding any of it does.

The tables carry no Trayodashi start and end times except on the Dhanteras row, so the instants below come from the site’s lunar code. Run against the 86 DE421 festival rows that do print a tithi’s start and end, that code lands within one minute of both instants on every one. Each evening in the table was then tested again with the Trayodashi stretched and shrunk by 30 minutes at both ends; none of them moves.

Dates are for New Delhi. A Trayodashi begins and ends at the same instant everywhere, but sunset does not, so a city far east or west of New Delhi can see its share of a window change by many minutes. Your own sunset is on the panchang calculator.

The May Trayodashi Two Evenings Share

The waning-fortnight Trayodashi of May opens at 20:04 on 3 May, well after that day’s 18:57 sunset, and closes at 19:31 on 4 May, part-way through the next evening’s window, which starts at 18:57. Neither evening holds the whole of the pradosh hours. The Monday evening has 77 of its 144 minutes in Trayodashi, the later part of its window; the Tuesday evening has 34, the early part.

Panchangs resolve a case like this by different conventions, and this page does not choose among them. One is visible in the site’s own code. The generator behind the festival tables decides pradosh-rule festivals by asking only whether the tithi holds at the moment of sunset, and by that test Tuesday 4 May is the day, since Trayodashi is current at its sunset and is not yet current at the earlier one. A reckoning that weighs how much of the window each evening holds would point to 3 May instead. So the May entry is Som or Bhaum Pradosh, depending on which convention your household or temple calendar follows.

Away from New Delhi the shares change, and where the sun sets earlier they tilt the other way: the 3 May window closes before much of the Trayodashi has arrived, and the 4 May window catches more of it before it ends.

• Mumbai: sunset 19:01 then 19:01; 81 minutes on 3 May, 30 on 4 May, so the larger share falls on 3 May
• Chennai: sunset 18:24 then 18:24; 44 minutes on 3 May, 67 on 4 May, so the larger share falls on 4 May
• Kolkata: sunset 18:04 then 18:04; 24 minutes on 3 May, 87 on 4 May, so the larger share falls on 4 May
• Guwahati: sunset 17:55 then 17:56; 15 minutes on 3 May, 95 on 4 May, so the larger share falls on 4 May

Those city sunsets come from the site’s solar routine rather than the daily table, and in no city does one evening have the tithi to itself.

Three Evenings That Look Close and Are Not

The first of the year. The waning Trayodashi that opens 2027 starts at 18:16 on 4 January, 39 minutes after that day’s sunset, so the Monday evening holds the last 105 minutes of its window. That is a share, not the whole. The tithi then runs until 20:40 on 5 January, 38 minutes past the end of that evening’s window, which puts all 144 minutes of the Tuesday window inside it. The vrat is Tuesday 5 January 2027, a Bhaum Pradosh, and the sunset-only test gives the same day.

The one that ends early. The waxing Trayodashi of March ends at 20:45 on 20 March, before the window does, so that evening keeps 133 of 144 minutes. It is still the vrat day, because the evening of 19 March has none: the tithi only arrives 142 minutes after that window has closed.

The long one. The waxing Trayodashi of September begins at 22:13 on 12 September and ends at 00:40 on 14 September, touching three dates. Only the middle evening, Monday 13 September, has pradosh hours inside it; the first evening’s window is over before the tithi begins and the third’s opens after it has gone.

Shani, Som and the Other Weekday Names

Almanacs name a pradosh after the weekday it lands on: Som Pradosh on a Monday, Bhaum on a Tuesday, Shani on a Saturday, and so on through the week. Leaving the May case aside, the twenty-four settled evenings of 2027 come out like this:

• Som Pradosh (Monday): 3
• Bhaum Pradosh (Tuesday): 2
• Budh Pradosh (Wednesday): 5
• Guru Pradosh (Thursday): 5
• Shukra Pradosh (Friday): 1
• Shani Pradosh (Saturday): 5
• Ravi Pradosh (Sunday): 3

The five Shani Pradosh evenings are 20 March, 31 July, 14 August, 11 December and 25 December; the Som Pradosh evenings are 17 May, 13 September and 27 September. The May evening would add one to Som or to Bhaum, depending on the convention. Budh, Guru and Shani Pradosh are the commonest in 2027 at five each, and Shukra the rarest at one. The weekday name is a label for the day; this page attaches no particular result to any of them. For the weekly fasts themselves, see Monday fasting for Shiva and Saturday fasting.

Where a Pradosh Meets Another Observance

Dhanteras. The 2027 table puts Dhanteras on Wednesday 27 October, and its stated rule is “tithi at pradosh”: the festival is fixed by the same waning Trayodashi at the same evening window, which the row prints as 17:40-20:04. The pradosh list arrives at that date independently, so the two agree, as they must. The row’s Trayodashi ends at 22:50, long after the window has closed.

Maha Shivratri. The waning pradosh of 5 March falls the evening before the table’s Maha Shivratri on Saturday 6 March, where the Chaturdashi is read at midnight. The two are separate nights.

Masik Shivratri on the same night. Each waning Trayodashi is followed straight away by Krishna Chaturdashi, and the monthly Shivratri goes to the first night on which Chaturdashi is current at 23:58, the midnight probe the site’s generator uses. When the Trayodashi ends in the late evening, both observances can fall on one date. On 5 January the Chaturdashi takes over at 20:40, 198 minutes before the probe, so the year’s first pradosh and its first Masik Shivratri share a night. The same happens on 31 July and 27 October. On 25 December the Chaturdashi begins only 26 minutes before the probe, which is too fine a margin for this page to say which night the Shivratri takes. The full list is on the Masik Shivratri 2027 page.

Why Twenty-five, and Why July Has Three

The count follows the Moon. The lunation table has thirteen new moons and twelve full moons in 2027, and each waning Trayodashi sits just before a new moon, each waxing one just before a full moon, which is where the thirteen and twelve come from. Twenty-six would need twelve and a half lunations between the first evening and the last, about 369 days at the mean length the same table gives, which no calendar year has room for.

An added lunar month does not change that. 2027 has none (the closures file leaves its adhika entry empty), while 2026 had Adhika Jyeshtha; the same test run over 2026 finds twenty-five pradosh evenings, the same number. An adhika month lengthens the lunar year, not the calendar one; how many Trayodashis a calendar year catches depends only on where the lunations fall inside its days.

Months normally get two. July gets three, on 1 July, 15 July and 31 July, because a waning Trayodashi lands at each end of a thirty-one-day month with the waxing one in between. No other month of 2027 has more than two.

What the Evening Involves

Vrat manuals describe a fast through the day, broken after Shiva is worshipped in the pradosh hours; many households go to a Shiva temple at dusk, and others keep the puja at home. The window above is the span within which that evening worship is placed. Customs on what the fast allows vary by family, and this page lists the evenings and the reasoning behind them, not a rule for the fast.

Related Pages

The pradosh evenings left in 2026 are on the closing-months 2026 list. The fortnightly fast kept two lunar days earlier is on the Ekadashi 2027 list. For every day each Trayodashi has held at sunrise in the tables, see Shukla Trayodashi and Krishna Trayodashi. The year as a whole is in the 2027 festival calendar, and every computed festival date is on the festival pages; the last evening in the list above is Saturday 25 December 2027. In Hindi: प्रदोष व्रत 2027 लिस्ट: 25 तारीखें, वार और मई की बँटी तिथि.