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Plum Blossom Divination · Current Time

Mei Hua Yi Shu — Current-Time Casting

Mei Hua Yi Shu includes multiple ways to form a hexagram from observed numbers and circumstances. Quick I Ching implements one current-time convention and states its calendar choices explicitly rather than presenting them as the only traditional rule.

Mei Hua Yi Shu · Current-Time Casting

Cast from the current moment

Confirm the timezone that should define your local civil time. The instant is fixed when you cast and remains fixed for this browser session.

Timezone conversion uses the browser’s IANA timezone data, including daylight-saving transitions where applicable.

Convention

Convention used in Public V1

Quick I Ching uses quickiching-gregorian-current-time-v2: a Gregorian civil-date current-time convention. The Gregorian year is converted to its 1–12 terrestrial-branch number; Gregorian month and day are used directly; the local hour is converted to the 12 earthly branches. Zi hour is 23:00–00:59, with 23:00 using the next Gregorian formula date.

This convention does not use a lunar calendar or lunar leap months, so it is not presented as the only traditional Mei Hua calendar convention. Gregorian leap days are handled normally, and the chosen IANA timezone determines the local date and DST offset.

Classical arithmetic behind the convention

The current-time rule uses a 1–12 year number, month and day for the upper trigram; adding the 1–12 hour branch gives the lower trigram and moving line. Division remainders map to the eight trigrams and six line positions.

Quick I Ching preserves that arithmetic while making a specific civil-calendar choice for an international web tool.

Quick I Ching’s calendar choices

  • Year: Gregorian year converted to its terrestrial-branch ordinal, with 2020 as Zi = 1.
  • Month/day: Gregorian civil month and date, not lunar-calendar values.
  • Hour: the 12 earthly branches; Zi is 23:00–00:59.
  • Zi rollover: 23:00 uses the next Gregorian formula date.
  • Timezone: the user-confirmed IANA zone determines local civil time and DST.
  • Leap month: not applicable because this convention does not use lunar months; Gregorian leap day is handled normally.

How to interpret the result

Current-time casting creates one moving line. Read the primary hexagram as the starting pattern, then note the single changing position and the relating hexagram created by reversing that line. The free text remains a general reflection framework, not a claim that the timestamp determines a fixed future.