src/java.base/share/classes/sun/util/cldr/CLDRTimeZoneNameProviderImpl.java

*** 279,287 ****
              }
              hourFormat = hourFormat
                  .replaceFirst("H+", (isShort ? "\\%1\\$d" : "\\%1\\$02d"))
                  .replaceFirst("m+", "\\%2\\$02d");
              return MessageFormat.format(gmtFormat,
!                     String.format(hourFormat, offset / 60, offset % 60));
          }
      }
  }
--- 279,287 ----
              }
              hourFormat = hourFormat
                  .replaceFirst("H+", (isShort ? "\\%1\\$d" : "\\%1\\$02d"))
                  .replaceFirst("m+", "\\%2\\$02d");
              return MessageFormat.format(gmtFormat,
!                     String.format(l, hourFormat, offset / 60, offset % 60));
          }
      }
  }