Online Tithi Calculator – Find Your Tithi, Moon Phase & Devathai

Use the Free Online Tithi Calculator

Use our free Online Tithi Calculator based on Thirukanitha Tamil Panchangam software to calculate your exact Tithi (Lunar Day), Moon phase, and corresponding Thithi Devathai for any date and location.

Enter the date, time, and location to find out the precise Tithi or Moon phase for today or any other date, free, online.

Online thithi calculator

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What is Tithi (Lunar Day)?

Tithi is an exact lunar day, that is approximately one thirtieth of the time it takes for the moon to orbit the earth. Each tithi is dedicated to a deity or devathai, and each lunar phase has a unique name in Tamil.

Tamil names of each tithi are as follows; pirathamai, thuvithiyai, thiruthiyai, chathurthi, panjchami, sashdi, sapthami, ashdami, navami, thasami, eagaathasi, thuvaathasi, thirayoathasi, chathurthasi and paurnami / amaavaasai.

Significance of Tithi in Tamil Astrology

Tithi plays an important role along with Varam, Nakshatram, Yogam, and Karanam in our daily as well as special occasions. It is essential for selecting auspicious times (Nalla Neram, Muhurtham), for personal worship, and for performing ancestral offerings (Pithur Karmam).

Auspicious and Inauspicious Tithis by Weekday

Certain Tithis are considered auspicious or inauspicious depending on the day of the week:

Auspicious tithi

Sunday - Ashdami, Monday -Navami, Tuesday - Shasdi, Wednesday - Thirurhiyai, Thursday - Ekadasi, Friday - Thirayodasi, Saturday - Chathurdasi are the auspicious days.

Inauspicious thithi

Sunday - Chathurdasi, Monday - Shasdi, Tuesday - Sapthami, Wednesday - Thuvithiyai, Thursday - Ashdami, Friday - Navami, Saturday - Sapthami are the inauspicious days.

Personal Worship and Birth Tithi

The Tithi on which you were born is considered the most favorable day for your personal worship. Find out your birth Tithi and its corresponding deity (Thithi Devathai or Thithi Deivam) using the online calculator to honor the appropriate celestial force.

Tithi for Offerings to the Deceased (Pithur Karmam)

Tithi is also considered a very important day to pay homage to deceased parents and ancestors. Special offerings, known as Pithur Karmam, are made on their annual Tithi. The favorite food of the deceased person is specially prepared and offered on this day.

To determine the correct date, you can enter the date, time, and place of death into the Tithi Calculator to find out the prevailing Tithi at that time. The annual Tithi is then performed on the same Tamil calendar date every year.

How Tithi is Calculated (Astronomical Basis)

Thithi is calculated when the moon moves 12 degrees eastwards from the sun. First such move - phase is known as prathamai thithi during sukla paksham or waxing moon.

When the moon moves 180 degrees it is known as paurnami or full moon and when the moon moves 360 degrees it is known as amavasai.

Tithi Calculator - Frequently Asked Questions (FAQ)

What is the Tithi Calculator for?

The Online Tithi Calculator, based on Tamil Astrological Almanac software, accurately calculates the Tithi (lunar day) and its corresponding deity, known as Thithi Devathai. You can use it to find out the Tithi or Moon phase for today or any other date.

What is a Tithi?

A Tithi is an exact lunar day, approximately one-thirtieth of the time it takes for the moon to orbit the earth. Each Tithi is dedicated to a specific deity (Devathai), and each lunar phase has a unique name in Tamil.

What are the Tamil names for Tithis?

The Tamil names for each Tithi are: Pirathamai, Thuvithiyai, Thiruthiyai, Chathurthi, Panjchami, Sashdi, Sapthami, Ashdami, Navami, Thasami, Eagaathasi, Thuvaathasi, Thirayoathasi, Chathurthasi, and Paurnami / Amaavaasai.

How is Tithi calculated?

Tithi is calculated based on the moon's movement eastward from the sun. The first phase, when the moon moves 12 degrees, is known as Prathamai Tithi during Sukla Paksham (waxing moon). When the moon moves 180 degrees, it's Paurnami (full moon), and at 360 degrees, it's Amaavaasai (new moon).

What role does Tithi play in Tamil astrology

Tithi plays an important role along with Varam, Nakshatram, Yogam, and Karanam in daily life and for special occasions. It is used in selecting auspicious times (Nalla Neram, Muhurtham) and for performing ancestral offerings (Pithur Karmam).

How is Tithi related to worship?

The Tithi on which you were born is considered the most favorable day for your personal worship. You can find out your birth Tithi and its corresponding deity (Thithi Devathai or Thithi Deivam) using this online tool.

What is the significance of Tithi for offerings to the deceased?

Tithi is considered a very important day to pay homage to deceased parents and ancestors. Special offerings, known as Pithur Karmam, are made on their annual Tithi, often including the deceased person's favorite food.

How do I find the Tithi for ancestral offerings?

You can enter the date, time, and place of death into the Tithi Calculator to find out the prevailing Tithi at that time. The annual Thithi for offerings is then performed on the same Tamil calendar date every year.