The National Education Commission on Time and Learning (NECT&L) is an independent advisory body authorized by Congress through the Education Council Act of 1991. It has been asked to make a comprehensive review of the relationship between time and learning in elementary and secondary education, including international comparisons, the use of time in and out of school, the use of facilities, year-round professional opportunities for teachers, and estimated costs of adopting longer school days and years. This report summarizes proceedings of a public hearing where the Commission met with representatives of five groups involved in developing and publishing new curriculum standards in music education, the natural sciences, English, mathematics, and geography: the Music Educators National Conference; the National Academy of Sciences; the National Council of Teachers of English; the National Council of Teachers of Mathematics; and the National Geographic Society. The hearing focused on the implications of new curricula for time in the school calendar. Representative agreed on the need to develop a thematic approach that cuts across issues and sets standards for all students. Other areas of discussion, involving much debate, included the adequacy of time for teacher preparation, the adequacy of the traditional calendar year, disciplines versus a common core of learning, and policy formation and implementation. One figure is included. (LMI)