At 0300 there are no shadows from the Sun, it is night time.
1200
Dark Shadows - 1966 1-1200 was released on: USA: 29 January 1971
300
1200
300
The longest shadows are cast when the sun is low above the horizon - either after dawn and before dusk.
LCM of 240 and 300 is 1200.
1200
It is 25%.
4*300
2100
1500 a.d. - 1200 a.d. = 300 years.