The New Year In Nepal Festivals Mountaineering Dreams And The Turning Of The Nepali Calendar

Understanding the Nepali Calendar Shift and What It Means for Festival Scheduling and Mountaineering Seasons

The Nepali calendar, also called B.S. or Bikram Sambat, operates on a different system than the Gregorian calendar most of the world uses. It runs roughly 56-57 years ahead. The new year, known as Nepali New Year or Bisket New Year, typically falls on Baisakh 1, which maps to mid-April in the Gregorian calendar. The exact date shifts slightly because the Nepali calendar accounts for lunar cycles alongside solar positioning. When the calendar turns, festivals shift with it. Dashain, Tihar, Chhath, and other major celebrations are all anchored to the Bikram Sambat system. If you are planning travel or coordinating operations around these dates, relying on Gregorian equivalents alone will get you wrong. I learned this the hard way during the 2019 festival season when I had a climbing team arriving for permits based on converted dates that were off by nearly three weeks due to the intercalary month adjustment. We lost four days waiting for clearance that should have come on schedule. The core mechanism behind the Nepali calendar is its dual-lunisolar nature. Months are defined by moon phases, but the year length is kept in line with the solar cycle through periodic adjustments. This means some months stretch to 31 days while others drop to 29. The extra day, or adhik masa, gets inserted roughly every third year to prevent drift. For anyone tracking festival dates across years, this is the main source of confusion.

Festival timing affects everything from hotel availability to flight prices. Dashain alone accounts for roughly a quarter of annual domestic travel. People flood back to their hometowns. Roads clog. Flights sell out months in advance. If you are a mountaineer planning a pre-monsoon window around the Everest base camp trek, you need to account for the fact that the best weather window overlaps with post-Dashain stability. The air is clearer after the monsoon dust settles, but the roads are already recovering from the holiday rush. It is a narrow balance. One thing most people miss is that the Nepali New Year celebration itself varies by region. In eastern Nepal, Bisket Jatra in Bhaktapur involves a chariot pull and local rituals that can shut down streets for days. In western regions, celebrations are quieter. The date you see on a government calendar might not match what your homestay host is actually preparing for. I stopped using online converters during the 2022 planning cycle and started cross-referencing with local publications from each specific zone. The discrepancy was about five days between sources, which made a real difference for permit applications. The mountaineering season runs from late September through November and then April through May. The turning of the Nepali calendar in mid-April aligns with the pre-monsoon climbing window. Sherpas and support teams use the New Year period to finalize logistics for the upcoming season. Equipment gets serviced, helicopter schedules are locked in, and tea houses along the trails start preparing for the influx. If you are booking a trek or expedition, reaching out in late Falgun or early Chaitra, which is February to March in Gregorian terms, tends to get you better rates than waiting until the calendar has already turned.

A practical workaround for tracking these dates is to keep a running comparison sheet. I maintain a simple table with columns for Bikram Sambat month, Gregorian equivalent, key festivals, and weather notes for the relevant climbing zones. Updating it once a month takes about ten minutes and saves hours of back-and-forth later. The Nepal Government's Department of Hydrology and Meteorology publishes an annual almanac that includes both calendar systems side by side. It is free and available through their website. I download it every January and use it as the baseline for the entire year. There is a limitation worth noting. The calendar adjustments are not always published with the same lead time everywhere. Rural areas sometimes rely on temple announcements or local paper notices rather than the official government calendar. If you are coordinating with teams in remote districts, confirm dates through multiple channels before locking in schedules. The margin for error is small and the consequences are expensive when you are dealing with permit deadlines and helicopter windows that cost thousands per hour to reschedule.