TZ	::=	<STD><OFFSET>[<DST>[OFFSET],<RULE>]
<STD>	::=	TLA for winter time zone (ie: EST)
<DST>	::=	TLA for summer (daylight savings) time zone (ie: EDT)
<OFFSET>	::=	[-]<H>[:<M>[:<S>]]
<H>	::=	integer between -12 and +11
<M>	::=	integer between 0 and 59
<S>	::=	integer between 0 and 59
<RULE>	::=	<START>[/<TIME>],<END>[/<TIME>]
<START>	::=	J<JULIAN_DATE> | M<MONTH>.<WEEK>.<DAY_OF_WEEK>
<JULIAN_DATE>	::=	1 through 365
<MONTH>	::=	1 through 12
<WEEK>	::=	1 through 4
<DAY_OF_WEEK>	::=	0 through 6 (0 is Sunday)
<TIME>	::=	<H>[:<M>[:<S>]] (defaults to 02:00:00)