c_date

MIPS处理器的bootloader,龙芯就是用的修改过的PMON2

date The date command displays or sets the date and time.

Format The format of the date command is:

date [ yymmddHHMM.SS]

where:

yymmddHHMM.SS

is the new date and time.

Functional
Description

The date command with no arguments displays the current date and time as
stored in the board抯 battery-backed clock/calendar device. If an argument is
given, then this sets the current date and time.

The optional argument is a string of pairs of digits, with the following meaning:

yy year (modulo 100)

mm month (Januar y = 1)

dd day of month

HH hour (24 hour clock)

MM minute

.SS seconds

When setting the date and time, you only need to enter as much as needs
changing, starting with the minutes, then hours, then day, etc. Any value
which is omitted is unchanged, except for seconds, which will be set to zero if
omitted.

Some examples of the date command follow.
PMON> date 			Display current time
Wed Feb 23 13:29:33 1994
PMON> date 32 			Change minutes
Wed Feb 23 13:32:00 1994
PMON> date 1405 		Change hours and minutes
Wed Feb 23 14:05:00 1994
PMON> date 9402241103 		New date and time
Thu Feb 24 11:03:00 1994