[tz] [PROPOSED 2/2] Mention zonenow.tab in “Theory”

[Paul Eggert]

* theory.html (Timezone identifiers): Mention zonenow.tab.
---
 theory.html | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/theory.html b/theory.html
index 369c7543..0fb8d66a 100644
--- a/theory.html
+++ b/theory.html
@@ -362,6 +362,11 @@ The backward-compatibility file <code>zone.tab</code> is similar
 but conforms to the older-version guidelines related to <abbr>ISO</abbr> 3166-1;
 it lists only one country code per entry and unlike <code>zone1970.tab</code>
 it can list names defined in <code>backward</code>.
+Applications that process only timestamps from now on can instead use the file
+<code>zonenow.tab</code>, which partitions the world more coarsely,
+into regions where clocks agree now and in the predicted future;
+this file is smaller and simpler than <code>zone1970.tab</code>
+and <code>zone.tab</code>.
 </p>
 
 <p>
-- 
2.40.1