_mktime32(tm) vs fast_mktime_v3(tm):

[3665] -- year: 1970, month: 1, day: 1, hour: 5, minute: 18, second: 8
[3665] -- timestamp1: 28799, timestamp2: 19088, diff: 9711

[9066] -- year: 1970, month: 1, day: 1, hour: 3, minute: 9, second: 18
[9066] -- timestamp1: 28799, timestamp2: 11358, diff: 17441
