epoch: (len.10)*
year month day hours minutes seconds
year 200520062007200820092010201120122013201420152016201720182019202020212022202320242025202620272028202920302031203220332034203520362037203820392040 month 123456789101112 day 12345678910111213141516171819202122232425262728293031 hours 01234567891011121314151617181920212223 minutes 01234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859 seconds 01234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859