Panchang — the five limbs of any day, for any place
Pick a date and a town. SIA computes the Sun and the Moon for that day with its own engine and reads the five limbs and the day’s windows. Name your own kundali and the same page reads the day for you: your star, what today is good for, your running periods. Today needs no account; any day of the calendar opens with a plan.
Today needs no account — the date and place you chose come along. Sign in only when you want your own kundali read beside it.
How SIA reads a day
- Choose the date and the place above — sunrise and sunset, and so the day’s windows, depend on the place.
- SIA computes the Sun’s and the Moon’s sidereal longitudes for that day and derives the five limbs: tithi from their gap, nakṣatra from the Moon, yoga from their sum, karaṇa as the half-tithi, vāra from sunrise.
- Read the day: the five limbs with their timings, the windows the books say to avoid, the choghaḍiyā and horā windows — and, with your own kundali named, the day read for you.
What a panchang is
A pañcāṅga is the five limbs of a day: the tithi (the lunar day, one of thirty), the vāra (the weekday), the nakṣatra the Moon stands in (one of twenty-seven), the yoga (one of twenty-seven, from the Sun and Moon together) and the karaṇa (a half-tithi, one of eleven). Every one of them is arithmetic on two longitudes — the Sun’s and the Moon’s — for a given moment and place, which is why a panchang differs from town to town by the sunrise that starts its day.
SIA computes those longitudes with its own planetary engine — the Sūryasiddhānta’s steps, refined by SIA’s own computation to a third of an arc-second — on the Lahiri ayanāṃśa every standard panchang shares, so the limbs and their change-times agree with the printed almanacs and carry the verse that defines each of them.
The day’s windows, and what is śāstra
Below the five limbs SIA lays out the choghaḍiyā (eight windows of the day and eight of the night) and the horā (the planetary hours). These are labelled for what they are: an almanac tradition, not a classical rule — SIA’s one standing habit is that anything claiming the authority of the texts carries a verse id, and these do not, so they say so.
The day read for you is the opposite case: once your own kundali is named, the page says how today’s Moon stands from your birth star, what today is good for — travel, meeting people, business, study — and which of your periods is running, each line with the verse it rests on. The same reading heads the Panchang tab inside every kundali.
Questions
Is the panchang free?
Today is — with no account needed, for any place; the day read for your own kundali needs that kundali, which you can cast without signing up too. Scrolling the calendar to any other day is part of every plan, small or large.
Why does the panchang change with the place?
The Hindu day runs from sunrise to sunrise, and sunrise depends on where you stand. The tithi, nakṣatra and yoga themselves barely move between towns; the times at which they change, and the windows of the day, follow the local sunrise and sunset.
Can I see a past or future date?
With a plan, any date: the Sun and Moon are computed for the day you pick, so a month next year or a birth day decades ago reads the same way as today. The free plan shows today.
Is it available in Hindi?
Yes — every limb and window in Hindi or English, switchable at any time.
How is this different from the Panchang inside a kundali?
This page reads the day itself, and — once your own kundali is named — the day for you. The Panchang tab inside any kundali adds that person’s own hours and the nine-graha weather, which need the chart.