Editing Hebrew calendar (section)

===Keviah===
{| class="wikitable" align="right" style="float; margin: 9px;"
! style="text-align:right" | Days in year →
| 353 || 354 || 355 || 383 || 384 || 385
|-
! Day of Rosh HaShanah
! colspan="6" | English ''Kevi'ah'' symbol
|-
| Monday (2) || 2D3 || || 2C5 || 2D5 || || 2C7
|-
| Tuesday (3) || || 3R5 || || || 3R7 ||
|-
| Thursday (5) || || 5R7 || 5C1 || 5D1 || || 5C3
|-
| Saturday (7) || 7D1 || || 7C3 || 7D3 || || 7C5
|}
There are three qualities that distinguish one year from another: whether it is a leap year or a common year; on which of four permissible days of the week the year begins; and whether it is a deficient, regular, or complete year. Mathematically, there are 24 (2×4×3) possible [[combination]]s, but only 14 of them are valid.

Each of these patterns is known by a {{lang|he|kevi'ah}} ({{langx|he|קביעה}} for 'a setting' or 'an established thing'), which is a code consisting of two numbers and a letter. In English, the code consists of the following:
* The left number is the day of the week of {{nowrap|1 Tishrei}}, Rosh Hashanah {{nowrap|(2 3 5 7; Hebrew: ב ג ה ז)}}
* The letter indicates whether that year is deficient (D, "ח", from {{Langx|he|חסרה|Chasera}}), regular (R, "כ", from {{Langx|he|כסדרה|Kesidra}}), or complete (C, "ש", from {{Langx|he|שלמה|Shlema}})
* The right number is the day of the week of {{nowrap|15 Nisan}}, the first day of Passover or Pesach {{nowrap|(1 3 5 7; Hebrew: א ג ה ז)}}, within the same Hebrew year (next Julian/Gregorian year)
The {{transliteration|he|kevi'ah}} in Hebrew letters is written right-to-left, so their days of the week are reversed, the right number for {{nowrap|1 Tishrei}} and the left for {{nowrap|15 Nisan}}.

The ''kevi'ah'' also determines the [[Torah reading]] cycle (which ''parshiyot'' are read together or separately.<ref name="Judaism 101">{{cite web|title=The Jewish Calendar: A Closer Look|url=http://www.jewfaq.org/calendr2.htm|publisher=Judaism 101|access-date=25 March 2011}}</ref>