6 .Nd grand digital clock (curses)
13 runs a digital clock made of reverse-video blanks on a curses
14 compatible VDU screen.
15 With an optional numeric argument
19 seconds (default never).
22 flag makes digits scroll as they change.
25 flag tells grdc to output the time in a 12-hour format.
26 In this curses mode implementation,
27 the scrolling option has trouble keeping up.
31 The time zone to use for displaying the time.
32 It is normally specified as a pathname relative to
33 .Pa /usr/share/zoneinfo ,
37 If this variable is not set, the time zone is determined based on
43 modified for curses by