NASS Scientific Calculator Programs:

The calculator makes this conversion as it has a conversion to Degrees: Minutes: Seconds 2ND -> DMS. Enter your longitude, say Chicago 87.63º W. Divide by 15 to change the degrees of longitude to hours. (5.842). Press 2ND -> DMS to convert this to time. (5:50:31) Chicago: 87.63º = 5.842 hours = … ................
................

In order to avoid copyright disputes, this page is only a partial summary.