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That
setting clocks at
is, by
standard
time.
by
later
hour
one
Time", "Wartime",
Saving
during
adopted
The first
(2)
apparent time (sun time)
standard time.
at
which local clocks are
time
with the sun compass
Solar
Mean
d.
(I)
The standard system of time is
The real sun has an apparent motion around the earth which
the travel of the earth along
due to
from d:iy to day.
CROSS
—
FIUUBI
Comparison of Mean Solar Time
5
OPERATION
12
Sunrise and sunset can
This
the clock.
by
or
the summer months.
in
changing
step
is
to change the local watch time to
from military
Determine
standard
to
Time.
Ordinary
time
MEAN
.SLAR
S1ANDARD
00
\2
SECTION
o'clock noon when
time may
be
"Fast Time",
from
local watch time
or
adjust
and
set
time.
based on mean
its
orbit,
are not able to correct
pieces
SUN
T/M£
TIME
00
I
EARTH
OF
and
9
it
is
o'clock
11
made to
be
come
"Daylight
called
is usually
and
local
to
civil
sources tin
the watch
used
solar time.
is
non-uniform
Standard Time.
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