Download or view timeFullMoon.frink in plain text format
/** Time Magazine claimed that
"the next full moon on Friday the 13th isn’t expected to happen again for
another 30 years—on Aug. 13, 2049"
I've found almost every claim of this sort to be wrong, especially when
time zones are involved. Let's see if it's right. (Hint: it's right
for the continental U.S. but wrong for the "US/Hawaii" timezone.)
*/
use sun.frink
tz = "US/Mountain"
tzf = ### dd u ###
// ^ u is day number in week
d = #2019-09-13#
do
{
f = fullMoon[d]
fs = (f -> [tzf, tz])
if fs =~ %r/13 5/
println[f -> tz]
d = f + lunarmonth
} while d < #2099-09-13#
Download or view timeFullMoon.frink in plain text format
This is a program written in the programming language Frink.
For more information, view the Frink
Documentation or see More Sample Frink Programs.
Alan Eliasen, eliasen@mindspring.com