diff options
Diffstat (limited to 'tz-how-to.html')
| -rw-r--r-- | tz-how-to.html | 72 |
1 files changed, 13 insertions, 59 deletions
diff --git a/tz-how-to.html b/tz-how-to.html index ccfdc9eb4fdb..9f4f2284c7b4 100644 --- a/tz-how-to.html +++ b/tz-how-to.html @@ -3,14 +3,15 @@ <head> <title>How to Read the tz Database</title> <meta charset="UTF-8"> +<meta name="viewport" content="width=device-width, initial-scale=1"> <style> -pre {margin-left: 2em; white-space: pre-wrap;} -pre.td {margin-left: 0;} +pre {margin-left: 1.3rem; overflow: auto;} td {text-align: center;} table {border: 1px outset;} th, td {border: 1px inset;} table.rule {border: none; margin: auto;} td.footnote {text-align: left;} +ul {padding-left: 1.3rem;} </style> </head> <body> @@ -38,16 +39,7 @@ about the zones.</p> for Chicago (from the <code>northamerica</code> file in the <code>data</code> subdirectory):</p> -<table> -<tr> - <th colspan="6">From the Source File</th> -</tr> -<tr> - <td colspan="6"> - <table class="rule"> - <tr><td style="border:none;text-align:left"> -<pre class="td"> -#Rule NAME FROM TO - IN ON AT SAVE LETTER +<pre>#Rule NAME FROM TO - IN ON AT SAVE LETTER Rule Chicago 1920 only - Jun 13 2:00 1:00 D Rule Chicago 1920 1921 - Oct lastSun 2:00 0 S Rule Chicago 1921 only - Mar lastSun 2:00 1:00 D @@ -55,8 +47,7 @@ Rule Chicago 1922 1966 - Apr lastSun 2:00 1:00 D Rule Chicago 1922 1954 - Sep lastSun 2:00 0 S Rule Chicago 1955 1966 - Oct lastSun 2:00 0 S </pre> - </td></tr></table></td> -</tr> +<table> <tr> <th colspan="6">Reformatted a Bit</th> </tr> @@ -160,16 +151,7 @@ time changed in 1955. Got it?</p> <p>OK, now for the somewhat more interesting “US” rules:</p> -<table> -<tr> - <th colspan="6">From the Source File</th> -</tr> -<tr> - <td colspan="6"> - <table class="rule"> - <tr><td style="border:none;text-align:left"> -<pre class="td"> -#Rule NAME FROM TO - IN ON AT SAVE LETTER/S +<pre>#Rule NAME FROM TO - IN ON AT SAVE LETTER/S Rule US 1918 1919 - Mar lastSun 2:00 1:00 D Rule US 1918 1919 - Oct lastSun 2:00 0 S Rule US 1942 only - Feb 9 2:00 1:00 W # War @@ -184,8 +166,7 @@ Rule US 1987 2006 - Apr Sun>=1 2:00 1:00 D Rule US 2007 max - Mar Sun>=8 2:00 1:00 D Rule US 2007 max - Nov Sun>=1 2:00 0 S </pre> - </td></tr></table></td> -</tr> +<table> <tr> <th colspan="6">Reformatted a Bit</th> </tr> @@ -328,15 +309,7 @@ rule, so there should be no change.</li> <p>OK, now let’s look at a Zone record:</p> -<table> -<tr> - <th colspan="5">From the Source File</th> -</tr> -<tr> - <td colspan="5"> - <table class="rule"> - <tr><td style="border:none;text-align:left"> -<pre class="td"> +<pre> #Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Chicago -5:50:36 - LMT 1883 Nov 18 12:09:24 -6:00 US C%sT 1920 @@ -347,8 +320,7 @@ Zone America/Chicago -5:50:36 - LMT 1883 Nov 18 12:09:24 -6:00 Chicago C%sT 1967 -6:00 US C%sT </pre> - </td></tr></table></td> -</tr> +<table> <tr> <th colspan="5">Columns Renamed</th> </tr> @@ -576,31 +548,14 @@ the true offset is undefined. <p>As a final example, here’s the complete history for Hawaii:</p> -<table> -<tr> - <th colspan="6">Relevant Excerpts from the US Rules</th> -</tr> -<tr> - <td colspan="6"> - <table class="rule"> - <tr><td style="border:none;text-align:left"> -<pre class="td"> +<pre># Relevant Excerpts from the US Rules #Rule NAME FROM TO - IN ON AT SAVE LETTER/S Rule US 1918 1919 - Oct lastSun 2:00 0 S Rule US 1942 only - Feb 9 2:00 1:00 W # War Rule US 1945 only - Aug 14 23:00u 1:00 P # Peace Rule US 1945 only - Sep lastSun 2:00 0 S -</pre> - </td></tr></table></td> -</tr> -<tr> - <th colspan="6">The Zone Record</th> -</tr> -<tr> - <td colspan="6"> - <table class="rule"> - <tr><td style="border:none;text-align:left"> -<pre class="td"> + +# The Zone Record #Zone NAME STDOFF RULES FORMAT [UNTIL] Zone Pacific/Honolulu -10:31:26 - LMT 1896 Jan 13 12:00 -10:30 - HST 1933 Apr 30 2:00 @@ -608,8 +563,7 @@ Zone Pacific/Honolulu -10:31:26 - LMT 1896 Jan 13 12:00 -10:30 US H%sT 1947 Jun 8 2:00 -10:00 - HST </pre> - </td></tr></table></td> -</tr> +<table> <tr> <th colspan="6">What We Infer</th> </tr> |