IBM Informix products support DBTIME for compatibility with earlier products. We recommend that you use the GL_DATETIME environment variable for new applications. The DBTIME environment variable specifies the end-user formats of values in DATETIME columns for SQL API routines. See also End-User Formats.
(1) >>-DBTIME--+-| Standard DBTIME Formats |-------+--------------->< | (2) | '-| Era-Based DBTIME Formats |------'