Date & time

Helpers around Luxon DateTime for locale-aware formatting and time-of-day classifications such as day periods, seasons, moon phases and zodiac signs.

All formatters honour the user's locale via DateTime.toLocaleString and the classification helpers expose narrow string-literal return types you can use in your own type unions.

Formatting

• formatDate — long localized date (year, month, day).
• formatDateFull — weekday + day + month, no year.
• formatDateTime — long date with HH:mm time.
• formatMonth — long month name.
• formatMonthYear — long month name + year.
• formatTime — HH:mm time only.

Periods

• getCircadianPhase — biological rhythm phase (alert, focused, sleep, wind down).
• getDayPeriod — coarse part of the day (morning, afternoon, evening, night).
• getDayPeriodRange — start and end DateTime for a day period.
• getWorkdayPeriod — work, break or off based on weekday and hour.

Calendar & nature

• getMoonPhase — moon phase for a date using Conway's algorithm.
• getSeason — season for a country and date (hemisphere aware).
• getSeasonalMood — mood label derived from a season.
• getZodiacSign — Western zodiac sign for a birth date.

Predicates

• isToday — checks whether a DateTime refers to the same calendar day as a reference.