Next Moon Day exists for a simple reason: if you practice in the Ashtanga yoga tradition, or you're just moon-curious, it's genuinely useful to know at a glance when the next full moon or new moon falls, and to have upcoming eclipses in the same place.
The site has two halves. One is practical — live moon phase, countdown to the next moon day, and a running list of upcoming solar and lunar eclipses with visibility notes. The other is explanatory — why certain yoga lineages pause asana practice on moon days, and what to do with that day instead: pranayama, meditation, journaling, or simply sitting outside under the moon.
We're not affiliated with any single studio, teacher, or lineage. The moon-day convention described here draws on the Ashtanga tradition associated with K. Pattabhi Jois and the Mysore method, but variations on lunar rest days show up across yogic, Vedic, and other contemplative traditions — we've tried to describe the common thread rather than any one authority's exact rule.
How the moon phase is calculated
The live phase on the homepage is computed directly in your browser from the moon's actual synodic cycle (the ~29.53-day period between one new moon and the next), referenced against a known new moon. No app, account, or tracking is required to see it.
Support
This site is supported by advertising and occasional affiliate links on products relevant to the practices described here. It doesn't cost anything to use, and it doesn't ask for your email, your login, or your data to show you the moon.