diff --git a/app/mailers/user_mailer.rb b/app/mailers/user_mailer.rb
index 42cc88df2..50ff6a872 100644
--- a/app/mailers/user_mailer.rb
+++ b/app/mailers/user_mailer.rb
@@ -16,8 +16,15 @@ def bulk_message_email(message_id, user_id, message = nil, use_examples = false)
 
   def incomplete_reminder_email(user_id)
     @user = User.find_by_id(user_id)
-    return if @user.blank? || @user.admin? || @user.questionnaire || Time.now.to_date > Date.parse(HackathonConfig["last_day_to_apply"])
+    return if @user.blank? || @user.admin? || @user.questionnaire || Time.now.in_time_zone.to_date > Date.parse(HackathonConfig["last_day_to_apply"]).in_time_zone.to_date
 
     Message.queue_for_trigger("user.24hr_incomplete_application", @user.id)
   end
+
+  def rsvp_reminder_email(user_id)
+    @user = User.find_by_id(user_id)
+    return if @user.blank? || !@user.questionnaire.acc_status == "accepted" || Time.now.in_time_zone.to_date > Date.parse(HackathonConfig["event_start_date"]).in_time_zone.to_date
+
+    Message.queue_for_trigger("questionnaire.rsvp_reminder", @user.id)
+  end
 end
diff --git a/app/models/message.rb b/app/models/message.rb
index f98ee83bf..a25dfec09 100644
--- a/app/models/message.rb
+++ b/app/models/message.rb
@@ -37,6 +37,7 @@ class Message < ApplicationRecord
     "questionnaire.late_waitlist" => "Questionnaire Status: Waitlisted, Late",
     "questionnaire.rsvp_confirmed" => "Questionnaire Status: RSVP Confirmed",
     "questionnaire.rsvp_denied" => "Questionnaire Status: RSVP Denied",
+    "questionnaire.rsvp_reminder" => "Questionnaire: RSVP Reminder",
     "user.24hr_incomplete_application" => "User: Incomplete application (24 hours later)",
     "bus_list.new_captain_confirmation" => "Bus List: New captain confirmation",
     "bus_list.notes_update" => "Bus List: Updated notes (manually triggered)"
diff --git a/app/models/questionnaire.rb b/app/models/questionnaire.rb
index 973b96dad..2a2436ac2 100644
--- a/app/models/questionnaire.rb
+++ b/app/models/questionnaire.rb
@@ -10,6 +10,7 @@ class Questionnaire < ApplicationRecord
   before_validation :clean_negative_dietary_restrictions
   after_create :queue_triggered_email_create
   after_update :queue_triggered_email_update
+  after_update :queue_triggered_email_rsvp_reminder
   after_save :update_school_questionnaire_count
   after_destroy :update_school_questionnaire_count
 
@@ -249,4 +250,18 @@ def queue_triggered_email_update
   def queue_triggered_email_create
     Message.queue_for_trigger("questionnaire.#{acc_status}", user_id)
   end
+
+  def queue_triggered_email_rsvp_reminder
+    if saved_change_to_acc_status? && acc_status == "accepted"
+      days_remaining = Date.parse(HackathonConfig["event_start_date"]).in_time_zone.to_date - Time.now.in_time_zone.to_date
+      if days_remaining > 14
+        deliver_date = 7.days.from_now
+      elsif days_remaining > 10
+        deliver_date = 5.days.from_now
+      elsif days_remaining > 3
+        deliver_date = 2.days.from_now
+      end
+      UserMailer.rsvp_reminder_email(user_id).deliver_later(wait_until: deliver_date) if deliver_date.present?
+    end
+  end
 end
diff --git a/db/seed_messages/questionnaire--rsvp_reminder.md b/db/seed_messages/questionnaire--rsvp_reminder.md
new file mode 100644
index 000000000..ad7577856
--- /dev/null
+++ b/db/seed_messages/questionnaire--rsvp_reminder.md
@@ -0,0 +1,12 @@
+## Missing RSVP
+
+<div style="text-align: center;">
+  <h1>Are you coming to {{hackathon_name}}?</h1>
+  <h3>Let us know if we should expect you there!</h3>
+  <p>
+    <a href="{{accept_rsvp_url}}" class="button" target="_blank">Yes, I will Attend &raquo;</a>
+    <a href="{{deny_rsvp_url}}" class="button" target="_blank">No, I Can't Attend &raquo;</a>
+    <br>
+    <small><i>Link not working? Go to <a href="{{rsvp_url}}">{{rsvp_url}}</a></i></small>
+  </p>
+</div>
\ No newline at end of file
diff --git a/db/seeds.rb b/db/seeds.rb
index 28ce41ec8..b72203e26 100644
--- a/db/seeds.rb
+++ b/db/seeds.rb
@@ -15,6 +15,7 @@
   "questionnaire.accepted" => "You've been accepted!",
   "questionnaire.denied" => "Your application status",
   "questionnaire.rsvp_confirmed" => "RSVP Confirmation",
+  "questionnaire.rsvp_reminder" => "Are you coming to #{HackathonConfig['name']}?",
   "user.24hr_incomplete_application" => "Incomplete application",
   "bus_list.new_captain_confirmation" => "You're a bus captain!",
   "bus_list.update_notes" => "Bus Update"
@@ -25,6 +26,7 @@
   "questionnaire.accepted" => "Accepted email",
   "questionnaire.denied" => "Denied email",
   "questionnaire.rsvp_confirmed" => "RSVP confirmed email",
+  "questionnaire.rsvp_reminder" => "RSVP Reminder",
   "user.24hr_incomplete_application" => "Incomplete application (24-hour reminder)",
   "bus_list.new_captain_confirmation" => "New bus captain confirmation",
   "bus_list.update_notes" => "Bus list update"
diff --git a/test/controllers/user_mailer_test.rb b/test/controllers/user_mailer_test.rb
index 5b9d237e4..8bdaeea91 100644
--- a/test/controllers/user_mailer_test.rb
+++ b/test/controllers/user_mailer_test.rb
@@ -29,6 +29,19 @@ class UserMailerTest < ActionMailer::TestCase
     end
   end
 
+  context "upon scheduled rsvp reminder email" do
+    setup do
+      @user = create(:user, email: "test@example.com")
+      @message = create(:message, subject: "Are you coming to HackFoo?", type: "automated", trigger: "questionnaire.rsvp_reminder_email")
+
+      should "queue reminder bulk message" do
+        assert_difference "enqueued_jobs.size", 1 do
+          UserMailer.rsvp_reminder_email(@user.id).deliver_later
+        end
+      end
+    end
+  end
+
   context "with customized HackathonConfig" do
     setup do
       @user = create(:user, email: "test@example.com")
diff --git a/vendor/cache/puma-4.3.4.gem b/vendor/cache/puma-4.3.4.gem
new file mode 100644
index 000000000..422fc484c
Binary files /dev/null and b/vendor/cache/puma-4.3.4.gem differ