Timeline & Reference
Seasons:
Show:
| Term / Zman | When (Equinox) | Notes |
|---|
Tefillah–Korban correspondence (Berachot 26b):
Shacharit → Tamid Shachar · Mincha → Tamid Bein HaArbayim · Maariv → eivarim u'pedarim (organs left overnight).
Prayer windows mirror Tamid windows directly. | Gra method (sha'ot from sunrise to sunset). Magen Avraham uses dawn–nightfall, shifting all zmanim earlier.
24-Hour Circle Diagram
Noon at top, clockwise. Sky shading = physical light level. Inner ring bands show halachic time-period windows.
Season:
Show:
Color key:
Zmanim (time structure)
Prayer Times
Korban windows
Night watches
Sha'ah Duration by Month
~40°N latitude. At equinox one sha'ah = exactly 60 min. Dashed line = equinox baseline.
Key point: Summer sha'ah ≈ 75 min; winter ≈ 46 min. All 12 sha'ot always span sunrise → sunset — only their clock-length changes.