MathTime (sometimes MathTıme) is a commercial set of Times compatible mathematical type family for TeX, created by Michael Spivak. Used together with Times, it is one of the few typefaces that provide full-featured text and mathematical typesetting within TeX.
MathTime has been available in three variants:
MathTime 1.x and MathTime Plus was sold by (the now defunct) Y&Y, while MathTime Professional 2 is marketed by PCTeX. MathTime has been widely adopted by academic publishers such as by Elsevier,American Physical Society, and Springer.