Seconds Minutes Hours Days Months Years Table

From	Eq	To
60 seconds	=	1 minute [ mean solar ]
59.83617 seconds	=	1 minute [ sidereal ]
60 minutes	=	1 hour
24 hours	=	1 day
3,600 seconds	=	1 hour
86,400 seconds	=	1 day [ mean solar ]
86,164.09 seconds	=	1 day [ sidereal ]
7 days	=	1 week
168 hours	=	1 week
14 days	=	1 fortnight
28, 29, 30 or 31 days	=	1 month
365 days	=	1 year
366 days	=	1 leap year
12 months	=	1 year
31,536,000 seconds	=	1 year [ calendar ]
31,558,150 seconds	=	1 year [ sidereal ]
31,556,930 seconds	=	1 year [ tropical ]
9,460,550,000,000,000 metres	=	1 light year
299,792,458 metres per second ( m/s )	=	speed of light
parsec	=	approx. 3.25 light years