in computer programming languages CTime or ctime may refer to:

ctime(), a function in the ISO C standard library defined in the time.h standard header <ctime> is a standard header file for C++, equivalent to the C standard library header, <time.h> st_ctime, a member of the stat structure specifying the last inode change time of a file in a Unix-like filesystem CTime, a Microsoft ATL/MFC class for handling dates and times CTime, a datatype in the Haskell programming language corresponding to the C time_t type Time::CTime, a Perl module for interfacing with POSIX asctime