How many days of fasting are observed in Maskhaman ?
Masakshaman (Maskhaman) is a continuous fast for about one month — i.e., 30 days. In practice, many traditions observe it as 30 consecutive days, with variations in whether boiled water is allowed during the day (Shvetambar tends to allow it; Digambar practices often nirjala unless advised otherwise). ( jainknowledge.com)