diff --git a/irc/palaver.md b/irc/palaver.md
index 5c105ab..9107ddf 100644
--- a/irc/palaver.md
+++ b/irc/palaver.md
@@ -2,10 +2,17 @@
 
 Upstream: https://palaverapp.com/guides/commands/set.html
 
-* `/set ui.time_format yy-D HH.mm.ss`
-  * e.g.  21-173 19.51.30 (on 2021-06-22, 173th day of 2021)
+* `/set ui.time_format YY-'W'w-e HH.mm.ss`
+  * e.g.  21-W50-2 14.59.12 (on 2021, week 50, the second day (Tuesday) of the week)
 * `/set ui.nick_show_mode on`
   * makes prefixes visible
 * `/set ui.nick_prefix <`
 * `/set ui.nick_suffix >`
 * `/set ui.browser system_default`
+
+## Other timestamp formats
+
+Detailed spec: https://www.unicode.org/reports/tr35/tr35-dates.html#Date_Format_Patterns
+
+* `/set ui.time_format yy-D HH.mm.ss`
+  * e.g.  21-173 19.51.30 (on 2021-06-22, 173th day of 2021)