i3status-rust: Add time block with UTC timezone

We often find ourselves looking up UTC time, so add a block showing
time in UTC. While at it, drop the year which is not really useful.

i3status-rust/.config/i3status-rust/config.toml

@@ -8,7 +8,17 @@ icons = "awesome5"
 block = "time"
 interval = 60
 [block.format]
-full = " $icon $timestamp.datetime(f:'%a %d-%m-%Y %R') "
+full = " $icon $timestamp.datetime(f:'%a %d-%m %R')"
+[block.theme_overrides]
+idle_fg = "#66D9EF"
+idle_bg = "#000000"
+
+[[block]]
+block = "time"
+interval = 60
+timezone = "UTC"
+[block.format]
+full = " $timestamp.datetime(f:'%R') "
 [block.theme_overrides]
 idle_fg = "#66D9EF"
 idle_bg = "#000000"