Source: Noto CJK

U+33C2 Square Am

U+33C2 was added in Unicode version 1.1 in 1993. It belongs to the block U+3300 to U+33FF CJK Compatibility in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Other Symbol and is commonly used, that is, in no specific script.

The glyph is a square composition of the glyphs Latin Small Letter A, Full Stop, Latin Small Letter M, Full Stop. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. U+33C2 offers a line break opportunity at its position, except in some numeric contexts.

The Wikipedia has the following information about this codepoint:

The 12-hour clock is a time convention in which the 24 hours of the day are divided into two periods: a.m. (from Latin ante meridiem, translating to "before midday") and p.m. (from Latin post meridiem, translating to "after midday"). Each period consists of 12 hours numbered: 12 (acting as 0), 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11. The 12-hour clock has been developed since the second millennium BC and reached its modern form in the 16th century.
The 12-hour time convention is common in several English-speaking nations and former British colonies, as well as a few other countries. There is no widely accepted convention for how midday and midnight should be represented: in English-speaking countries, "12 p.m." indicates 12 o'clock noon, while "12 a.m." means 12 o'clock midnight.

Representations

System	Representation
Nº	13250
UTF-8	E3 8F 82
UTF-16	33 C2
UTF-32	00 00 33 C2
URL-Quoted	%E3%8F%82
HTML hex reference	㏂
Wrong windows-1252 Mojibake	ã‚
Encoding: CP949 (hex bytes)	A2 E3
Encoding: EUC_KR (hex bytes)	A2 E3
Encoding: GB18030 (hex bytes)	81 39 E9 32
Encoding: ISO2022_JP_2 (hex bytes)	1B 24 28 43 22 63 1B 28 42
Encoding: ISO2022_KR (hex bytes)	1B 24 29 43 0E 22 63 0F
Encoding: JOHAB (hex bytes)	D9 E3
Adobe Glyph List	amsquare

Elsewhere

Complete Record

Property	Value
Age (age)	1.1 (1993)
Unicode Name (na)	SQUARE AM
Unicode 1 Name (na1)	SQUARED AM
Block (blk)	CJK Compatibility
General Category (gc)	Other Symbol
Script (sc)	Common
Bidirectional Category (bc)	Left To Right
Combining Class (ccc)	Not Reordered
Decomposition Type (dt)	square
Decomposition Mapping (dm)	Latin Small Letter A Full Stop Latin Small Letter M Full Stop
Lowercase (Lower)	✘
Simple Lowercase Mapping (slc)	Square Am
Lowercase Mapping (lc)	Square Am
Uppercase (Upper)	✘
Simple Uppercase Mapping (suc)	Square Am
Uppercase Mapping (uc)	Square Am
Simple Titlecase Mapping (stc)	Square Am
Titlecase Mapping (tc)	Square Am
Case Folding (cf)	Square Am
ASCII Hex Digit (AHex)	✘
Alphabetic (Alpha)	✘
Bidi Control (Bidi_C)	✘
Bidi Mirrored (Bidi_M)	✘
Composition Exclusion (CE)	✘
Case Ignorable (CI)	✘
Changes When Casefolded (CWCF)	✘
Changes When Casemapped (CWCM)	✘
Changes When NFKC Casefolded (CWKCF)	✔
Changes When Lowercased (CWL)	✘
Changes When Titlecased (CWT)	✘
Changes When Uppercased (CWU)	✘
Cased (Cased)	✘
Full Composition Exclusion (Comp_Ex)	✘
Default Ignorable Code Point (DI)	✘
Dash (Dash)	✘
Deprecated (Dep)	✘
Diacritic (Dia)	✘
Emoji Modifier Base (EBase)	✘
Emoji Component (EComp)	✘
Emoji Modifier (EMod)	✘
Emoji Presentation (EPres)	✘
Emoji (Emoji)	✘
Extender (Ext)	✘
Extended Pictographic (ExtPict)	✘
FC NFKC Closure (FC_NFKC)	Square Am
Grapheme Cluster Break (GCB)	Any
Grapheme Base (Gr_Base)	✔
Grapheme Extend (Gr_Ext)	✘
Grapheme Link (Gr_Link)	✘
Hex Digit (Hex)	✘
Hyphen (Hyphen)	✘
ID Continue (IDC)	✘
ID Start (IDS)	✘
IDS Binary Operator (IDSB)	✘
IDS Trinary Operator and (IDST)	✘
IDSU (IDSU)	0
ID_Compat_Math_Continue (ID_Compat_Math_Continue)	0
ID_Compat_Math_Start (ID_Compat_Math_Start)	0
Ideographic (Ideo)	✘
InCB (InCB)	None
Indic Mantra Category (InMC)	—
Indic Positional Category (InPC)	NA
Indic Syllabic Category (InSC)	Other
Jamo Short Name (JSN)	—
Join Control (Join_C)	✘
Logical Order Exception (LOE)	✘
Modifier Combining Mark (MCM)	✘
Math (Math)	✘
Noncharacter Code Point (NChar)	✘
NFC Quick Check (NFC_QC)	Yes
NFD Quick Check (NFD_QC)	Yes
NFKC Casefold (NFKC_CF)	Latin Small Letter A Full Stop Latin Small Letter M Full Stop
NFKC Quick Check (NFKC_QC)	No
NFKC_SCF (NFKC_SCF)	Latin Small Letter A Full Stop Latin Small Letter M Full Stop
NFKD Quick Check (NFKD_QC)	No
Other Alphabetic (OAlpha)	✘
Other Default Ignorable Code Point (ODI)	✘
Other Grapheme Extend (OGr_Ext)	✘
Other ID Continue (OIDC)	✘
Other ID Start (OIDS)	✘
Other Lowercase (OLower)	✘
Other Math (OMath)	✘
Other Uppercase (OUpper)	✘
Prepended Concatenation Mark (PCM)	✘
Pattern Syntax (Pat_Syn)	✘
Pattern White Space (Pat_WS)	✘
Quotation Mark (QMark)	✘
Regional Indicator (RI)	✘
Radical (Radical)	✘
Sentence Break (SB)	Other
Soft Dotted (SD)	✘
Sentence Terminal (STerm)	✘
Terminal Punctuation (Term)	✘
Unified Ideograph (UIdeo)	✘
Variation Selector (VS)	✘
Word Break (WB)	Other
White Space (WSpace)	✘
XID Continue (XIDC)	✘
XID Start (XIDS)	✘
Expands On NFC (XO_NFC)	✘
Expands On NFD (XO_NFD)	✘
Expands On NFKC (XO_NFKC)	✔
Expands On NFKD (XO_NFKD)	✔
Bidi Paired Bracket (bpb)	Square Am
Bidi Paired Bracket Type (bpt)	None
East Asian Width (ea)	wide
Hangul Syllable Type (hst)	Not Applicable
ISO 10646 Comment (isc)	—
Joining Group (jg)	No_Joining_Group
Joining Type (jt)	Non Joining
Line Break (lb)	Ideographic
Numeric Type (nt)	none
Numeric Value (nv)	not a number
Simple Case Folding (scf)	Square Am
Script Extension (scx)
Vertical Orientation (vo)	U