this is a quote from me, from another post ages ago:
4 hours = 1 PS day
24 hours = 6 PS days
48 hours = 12 PS days
96 hours = 24 PS days
120 hours = 30 PS days
128 hours = 32 PS days (1 PS month)
5 days 8 hours = 1 PS month
10 days 16 hours = 2 PS months
16 days 0 hours = 3 PS months
32 days 0 hours = 6 PS months
53 days 8 hours = 1 PS year
106 days 16 hours = 2 PS years
213 days 8 hours = 4 PS years
320 days 0 hours = 6 PS years
365 days 0 hours = 6 PS years 8 months 14 days
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and the current year is static at around 750 YA