smuuf/primi

import std.time
import std.datetime: Datetime, Duration

print(f'Current UNIX time: {time.now()}')

d1 = Datetime('1989-11-17');
d2 = Datetime('2022-02-24');
d2_2 = Datetime('2022-02-24');

_ = "Datetime objects can be formatted"
assert(d1.format('H:i:s Y-m-d') == '00:00:00 1989-11-17')
assert(d2.format('d.m.Y H:i:s') == '24.02.2022 00:00:00')

_ = "Datetime objects can be compared for equality"
assert(d1 != d2, _)
assert(d1 != d2_2, _)
assert(d2 == d2_2, _)

delta = d2 - d1

assert(type(delta) == Duration)
assert(delta.days == 11787)
assert(delta.seconds == 0)
assert(delta.total_seconds == 1018396800)

d3 = d1 + delta
assert(d2 == d3)