U+33B0 was added to Unicode in version 1.1 (1993). It belongs to the block CJK Compatibility in the 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 p s. It has a Wide East Asian Width. In bidirectional context it acts as Left To Right and is not mirrored. In text U+33B0 behaves as Ideographic regarding line breaks. It has type Other for sentence and Other for word breaks. The Grapheme Cluster Break is Any.

The Wikipedia has the following information about this codepoint:

A picosecond is an SI unit of time equal to 10−12 or 1/1,000,000,000,000 of a second. That is one trillionth, or one millionth of one millionth of a second, or 0.000 000 000 001 seconds. A picosecond is to one second as one second is to 31,700 years. Multiple technical approaches achieve imaging within single digit picoseconds. For example the Streak camera or intensified CCD (ICCD) cameras are able to picture the motion of light.

The name is formed by the SI prefix pico and the SI unit second. It is abbreviated as ps.

One picosecond is equal to 1000 femtoseconds, or 1/1000 nanosecond. Because the next SI unit is 1000 times larger, measurements of 10−11 and 10−10 second are typically expressed as tens or hundreds of picoseconds. Some notable measurements in this range include:

  • shorter times
  • 1.0 picoseconds (1.0 ps) – cycle time for electromagnetic frequency 1 terahertz (THz) (1 x 1012 hertz), an inverse unit. This corresponds to a wavelength of 0.3 mm, as can be calculated by multiplying 1 ps by the speed of light (approximately 3 x 108 m/s) to determine the distance traveled. 1 THz is in the Far infrared.
  • 1 picosecond – time taken by light in a vacuum to travel approximately 0.30 mm
  • 1 picosecond – half-life of a bottom quark
  • ~1 picosecond – lifetime of a single H
    (hydronium) ion in water at 20°C
  • picoseconds to nanoseconds – phenomena observable by dielectric spectroscopy
  • 1.2 picoseconds – switching time of the world's fastest transistor (845 GHz, as of 2006)
  • 1.7 picoseconds - rotational correlation time of water
  • 3.3 picoseconds (approximately) – time taken for light to travel 1 millimeter
  • 10 picoseconds after the Big Bang – electromagnetism separates from the other fundamental forces
  • 10–150 picoseconds – rotational correlation times of a molecule (184 g/mol) from hot to frozen water
  • 108.7827757 picoseconds – transition time between the two hyperfine levels of the ground state of the caesium-133 atom at absolute zero
  • 330 picoseconds (approximately) – the time it takes a common 3.0 GHz computer CPU to add two integers
  • Longer times


System Representation
UTF-8 E3 8E B0
UTF-16 33 B0
UTF-32 00 00 33 B0
URL-Quoted %E3%8E%B0
HTML-Escape ㎰
Wrong windows-1252 Mojibake ㎰
Encoding: EUC-KR (hex bytes) A7 BF


Complete Record

Property Value
Age (age) 1.1
Unicode Name (na) SQUARE PS
Unicode 1 Name (na1) SQUARED PS
Block (blk) CJK_Compat
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) p s
Lowercase (Lower)
Simple Lowercase Mapping (slc) ㎰
Lowercase Mapping (lc) ㎰
Uppercase (Upper)
Simple Uppercase Mapping (suc) ㎰
Uppercase Mapping (uc) ㎰
Simple Titlecase Mapping (stc) ㎰
Titlecase Mapping (tc) ㎰
Case Folding (cf) ㎰
ASCII Hex Digit (AHex)
Alphabetic (Alpha)
Bidi Control (Bidi_C)
Bidi Mirrored (Bidi_M)
Bidi Paired Bracket (bpb) ㎰
Bidi Paired Bracket Type (bpt) None
Cased (Cased)
Composition Exclusion (CE)
Case Ignorable (CI)
Full Composition Exclusion (Comp_Ex)
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)
Dash (Dash)
Deprecated (Dep)
Default Ignorable Code Point (DI)
Diacritic (Dia)
East Asian Width (ea) Wide
Extender (Ext)
FC NFKC Closure (FC_NFKC) ㎰
Grapheme Cluster Break (GCB) Any
Grapheme Base (Gr_Base)
Grapheme Extend (Gr_Ext)
Hex Digit (Hex)
Hangul Syllable Type (hst) Not Applicable
Hyphen (Hyphen)
ID Continue (IDC)
Ideographic (Ideo)
ID Start (IDS)
IDS Binary Operator (IDSB)
IDS Trinary Operator and (IDST)
Indic Positional Category (InPC) NA
Indic Syllabic Category (InSC) Other
ISO 10646 Comment (isc)
Joining Group (jg) No_Joining_Group
Join Control (Join_C)
Jamo Short Name (JSN)
Joining Type (jt) Non Joining
Line Break (lb) Ideographic
Logical Order Exception (LOE)
Math (Math)
Noncharacter Code Point (NChar)
NFC Quick Check (NFC_QC) Yes
NFD Quick Check (NFD_QC) Yes
NFKC Casefold (NFKC_CF) p s
NFKC Quick Check (NFKC_QC) No
NFKD Quick Check (NFKD_QC) No
Numeric Type (nt) None
Numeric Value (nv) NaN
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)
Pattern Syntax (Pat_Syn)
Pattern White Space (Pat_WS)
Quotation Mark (QMark)
Radical (Radical)
Sentence Break (SB) Other
Simple Case Folding (scf) ㎰
Script Extension (scx) Common
Soft Dotted (SD)
STerm (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)