ICU-8780 Added a note to getGMT() explaining that the ID used by the result zone...

X-SVN-Rev: 30622

diff --git a/icu4c/source/i18n/unicode/timezone.h b/icu4c/source/i18n/unicode/timezone.h
index 059e55ac0cb360b3637279fd1b1c4ecada9ba7de..a37014d17be540d2f0fdb2214746a48d9e96104b 100644 (file)
--- a/icu4c/source/i18n/unicode/timezone.h
+++ b/icu4c/source/i18n/unicode/timezone.h
@@ -130,6 +130,11 @@ public:
     /**
      * The GMT time zone has a raw offset of zero and does not use daylight
      * savings time. This is a commonly used time zone.
+     *
+     * <p>Note: For backward compatibility reason, the ID used by the time
+     * zone returned by this method is "GMT", although the ICU's canonical
+     * ID for the GMT time zone is "Etc/GMT".
+     *
      * @return the GMT time zone.
      * @stable ICU 2.0
      */