diff --git a/pkg/dash/func/render.py b/pkg/dash/func/render.py
index f7b9c08..df47a61 100644
--- a/pkg/dash/func/render.py
+++ b/pkg/dash/func/render.py
@@ -114,18 +114,6 @@ def render_tab_content(tab, selected_dates, interval, time_zones, days_to_displa
             hovertemplate='%{y} %{x} EST<br>Tweets: %{z}<extra></extra>'
         ))
 
-        # Add time zone annotations if selected
-        if 'PST' in time_zones:
-            pacific_2am_est = (2 + 3) * 60 // interval
-            pacific_7am_est = (7 + 3) * 60 // interval
-            fig.add_vline(x=pacific_2am_est, line_dash="dash", line_color="blue", annotation_text="CA 2AM PST")
-            fig.add_vline(x=pacific_7am_est, line_dash="dash", line_color="blue", annotation_text="CA 7AM PST")
-        if 'CST' in time_zones:
-            central_2am_est = (2 + 1) * 60 // interval
-            central_7am_est = (7 + 1) * 60 // interval
-            fig.add_vline(x=central_2am_est, line_dash="dash", line_color="green", annotation_text="TX 2AM CST")
-            fig.add_vline(x=central_7am_est, line_dash="dash", line_color="green", annotation_text="TX 7AM CST")
-
     if tab in ['line', 'one_day_heatmap']:
         fig.update_layout(
             title=f'{"Line" if tab == "line" else "One-Day Heatmap"} Tweet Frequency (Interval: {interval} minutes, EST, {len(selected_dates)} days)',