Vishti Karana is an astrological term used in Hindu astrology, also known as Vedic astrology. It refers to one of the two types of Karanas, which are half-tithis used in the Panchang or Hindu calendar. The other type of Karana is called Shubha Karana.

Vishti Karana is considered inauspicious for beginning new ventures, starting journeys, or initiating any important activities. It is believed that undertaking important tasks during this Karana may lead to obstacles, delays, and difficulties. However, it is considered auspicious for activities related to destruction, such as demolishing buildings or cutting down trees.

The Vishti Karana occurs when the Moon is in a particular angular distance from the Sun, which is different from the angular distance during the Shubha Karana. The Vishti Karana occurs approximately twice a month, and its duration can vary between a few minutes to several hours, depending on the phase of the Moon.

While some people may choose to avoid important activities during Vishti Karana, it is important to note that there is no scientific evidence to support astrological beliefs. The decision to follow or not follow astrological advice is a matter of individual belief and choice.