The third day of Vaiśākha; akṣaya means 'the undiminishing'. What is begun or given today is held to keep growing, so gold is bought and ventures started.
How Vedic Phala finds the date
Akṣaya Tṛtīyā is Vaiśākha śukla tṛtīyā, the third tithi of the waxing fortnight. Vedic Phala calculates the local lunar month and tithi at sunrise, so the result follows the Moon rather than a saved April or May date. Tṛtīyā may begin during one civil day and end during another. The tradition often describes the day as naturally auspicious, but the date still has to be established from the pañcāṅga.
The word akṣaya means “undiminishing,” which is why giving, buying gold and beginning durable work became the public themes. Odisha also begins construction of the Purī chariots, and Simhāchalam removes the sandalwood covering from the deity for Candanotsavam. These are separate regional consequences of the same tithi, not extra date rules. A commercial “gold-buying day” advertisement may use local business hours; that should not be mistaken for the astronomical start or end of tṛtīyā.
Some lists connect the day with Paraśurāma Jayantī or the opening of Treta Yuga, while Jain communities give the date their own history. The app’s marker supplies the common lunar anchor. A temple’s precise pūjā interval remains the stronger source for a rite tied to a particular portion of the day.
The story
Akṣaya means 'that which does not diminish'. The texts attach several beginnings to this day: the sage Vyāsa is said to have begun dictating the Mahābhārata to Gaṇeśa on it, the Gaṅgā is said to have descended to earth on it, and the Treta Yuga is said to have opened on it.
The best-known story is Kṛṣṇa and Sudāmā. Sudāmā, a poor childhood friend, walked to Dvārakā with a handful of flattened rice as his only gift. He was too embarrassed to offer it, but Kṛṣṇa found it and ate it, and Sudāmā returned home to find his hut turned into a palace. A small gift given with a whole heart is the day's lesson.
Because whatever is started today is held to keep growing, it is the year's busiest day for buying gold, opening a business, laying a foundation, or beginning a long fast or a long study.