Vikram Samvat (
The Vikram Samvat has two alternative systems, one in Nepal, and the other in western and south India. It started in 56 BCE in southern (purnimanta) and 57–56 BCE in northern (amanta) systems of
The lunisolar Vikram Samvat calendar is 56.7 years ahead (in count) of the solar
The Rana rulers of Nepal made Vikram Samvat the official Hindu calendar in 1901 CE, which started as Samvat 1958.
 In Nepal, the new year begins with the first day of the month of
In India, the reformulated
The classical Vikram Samvat uses lunar months and solar sidereal years. Because 12 months do not match a sidereal year exactly, correctional months (
Months of the Nepali Bikram Samvat: In North India India the Vikram samvat starts from Chaitra.
||बैशाख||30 / 31(30.950 exactly)||mid-April to mid-May|
||जेष्ठ or जेठ||31 / 32(31.429 exactly)||mid-May to mid-June|
||आषाढ़ or असार||31 / 32(31.638 exactly)||mid-June to mid-July|
||श्रावण or साउन / सावन||31 / 32(31.463 exactly)||mid-July to mid-August|
||भाद्र or भदौ/भादो||31 / 32(31.012 exactly)||mid-August to mid-September|
||आश्विन or असोज or कुआर/क्वार||30 / 31(30.428 exactly)||mid-September to mid-October|
||कार्तिक||29 / 30(29.879 exactly)||mid-October to mid-November|
||मार्ग or मंसिर/अगहन||29 / 30(29.475 exactly)||mid-November to mid-December|
||पौष or पुष/पूस||29 / 30(29.310 exactly)||mid-December to mid-January|
||माघ||29 / 30(29.457 exactly)||mid-January to mid-February|
||फाल्गुन or फागुन||29 / 30(29.841 exactly)||mid-February to mid-March|
||चैत्र or चैत||30 / 31(30.377 exactly)||mid-March to mid-April|
The exact length of each month is the time taken by the Sun to move through a full zodiac sign.