What 𝑡 means
It marks a Latin t as a mathematical variable. Scientific notation uses italic letters for quantities and variables; t can stand for time, but the equation tells you which quantity it names.
Greek geometers used letters to label points, lines, and planes by the time of Hippocrates of Chios, around 440 BCE. The old job was labeling; mathematical italic adds a visual cue to a letter’s role in modern notation.
Why is math italic 𝑡 a separate character?
Mathematical type styles can carry meaning. In an equation editor, ordinary t can be italicized while remaining the source character; 𝑡 stores that math style directly for plain-text mathematical or technical notation. Unicode does not recommend these alphabets for styling ordinary prose.
Part of the collection
Don't confuse it with
1Related characters
2
Questions people ask
1Why does 𝑡 show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
More like this
11
How to type or find 𝑡
- Search it as
- italic t · math italic t · fancy t · unicode t · t variable
- Shows up in
- Anything that takes text · its shape is whatever your font draws
𝑡\1D4611D461 and press Alt+X (Microsoft instructions checked 2026-09-28).t as the variable and let the formula editor display it in math italic; this keeps styling out of the source text.Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.