This character is a Other Letter and is mainly used in the Han script. The Unihan Database defines it as seventh earthly branch. Its Pīnyīn pronunciation is wǔ.
The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. U+5348 offers a line break opportunity at its position, except in some numeric contexts.
The Wikipedia has the following information about this codepoint:
The Earthly Branches (also called the Terrestrial Branches or the 12-cycle) are a system of twelve ordered symbols used throughout East Asia. They are indigenous to China, and are themselves Chinese characters, corresponding to words with no concrete meaning other than the associated branch's ordinal position in the list. Cultural applications of the Branches include a dating system known as the sexagenary cycle, as well as astrology. They are associated with the ten Heavenly Stems in Chinese calendars, and in Taoist practice.
Representations
System
Representation (click value to copy)
Nº
21320
UTF-8
E5 8D 88
UTF-16
53 48
UTF-32
00 00 53 48
URL-Quoted
%E5%8D%88
HTML hex reference
午
Wrong windows-1252 Mojibake
åˆ
Encoding: BIG5 (hex bytes)
A4 C8
Encoding: BIG5HKSCS (hex bytes)
A4 C8
Encoding: CP932 (hex bytes)
8C DF
Encoding: CP949 (hex bytes)
E7 ED
Encoding: CP950 (hex bytes)
A4 C8
Encoding: EUC_JP (hex bytes)
B8 E1
Encoding: EUC_JIS_2004 (hex bytes)
B8 E1
Encoding: EUC_JISX0213 (hex bytes)
B8 E1
Encoding: EUC_KR (hex bytes)
E7 ED
Encoding: GB2312 (hex bytes)
CE E7
Encoding: GBK (hex bytes)
CE E7
Encoding: GB18030 (hex bytes)
CE E7
Encoding: HZ (hex bytes)
7E 7B 4E 67 7E 7D
Encoding: ISO2022_JP (hex bytes)
1B 24 42 38 61 1B 28 42
Encoding: ISO2022_JP_1 (hex bytes)
1B 24 42 38 61 1B 28 42
Encoding: ISO2022_JP_2 (hex bytes)
1B 24 42 38 61 1B 28 42
Encoding: ISO2022_JP_2004 (hex bytes)
1B 24 42 38 61 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes)
1B 24 42 38 61 1B 28 42
Encoding: ISO2022_JP_EXT (hex bytes)
1B 24 42 38 61 1B 28 42
Encoding: ISO2022_KR (hex bytes)
1B 24 29 43 0E 67 6D 0F
Encoding: JOHAB (hex bytes)
EE ED
Encoding: SHIFT_JIS (hex bytes)
8C DF
Encoding: SHIFT_JIS_2004 (hex bytes)
8C DF
Encoding: SHIFT_JISX0213 (hex bytes)
8C DF
Pīnyīn
wǔ
RFC 5137
\u'5348'
Bash and Zsh inside echo -e
\u5348
C and C++
\u5348
C#
\u5348
CSS
\005348
Excel
=UNICHAR(21320)
Go
\u5348
JavaScript
\u5348
Modern JavaScript since ES6
\u{5348}
JSON
\u5348
Java
\u5348
Lua
\u{5348}
Matlab
char(21320)
Perl
"\x{5348}"
PHP
\u{5348}
PostgreSQL
U&'\5348'
PowerShell
`u{5348}
Python
\u5348
Ruby
\u{5348}
Rust
\u{5348}
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