Vikram Samvat (
The Vikram Samvat has two alternative systems. 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||बैशाख||30 / 31(30.950 exactly)||mid-April to mid-May|
||जेठ or जेष्ठ||जेष्ठ||31 / 32(31.429 exactly)||mid-May to mid-June|
||असार or अषाढ़||आषाढ़||31 / 32(31.638 exactly)||mid-June to mid-July|
||साउन or श्रावण||श्रावण or सावन||31 / 32(31.463 exactly)||mid-July to mid-August|
||भदौ or भाद्र||भाद्र or भादो||31 / 32(31.012 exactly)||mid-August to mid-September|
||असोज or आश्विन||आश्विन or कुआर/क्वार||30 / 31(30.428 exactly)||mid-September to mid-October|
||कार्तिक or कातिक्क||कार्तिक||29 / 30(29.879 exactly)||mid-October to mid-November|
||मंसिर or मार्ग||मार्ग or मंसिर/अगहन||29 / 30(29.475 exactly)||mid-November to mid-December|
||पुष or पौष||पौष or पुष/पूस||29 / 30(29.310 exactly)||mid-December to mid-January|
||माघ||माघ||29 / 30(29.457 exactly)||mid-January to mid-February|
||फागुन or फाल्गुन/फागु||फाल्गुन||29 / 30(29.841 exactly)||mid-February to mid-March|
||चैत or चैत्र||चैत्र||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.