diff --git a/Readme.md b/Readme.md
index ae62200..c6fb9af 100644
--- a/Readme.md
+++ b/Readme.md
@@ -30,6 +30,20 @@
 
 `docker run -p 5000:5000 -e DATABASE_URL=postgres://postgres:59fff56880e1bbb42e753d2a82ac21b6@peterstockings.com:15389/bloodpressure_db bloodpressure`
 
+# Model updates
+
+Create migration
+
+```
+flask db migrate -m "Add timezone to Profile model"
+```
+
+Apply migration
+
+```
+flask db upgrade
+```
+
 # Fix deployment issues
 
 Because I was originally using a Heroku buildpack to build/host this app prior to switching to a Dockerfile it sets the ports to:
diff --git a/app/forms.py b/app/forms.py
index 2f054cd..70ec89a 100644
--- a/app/forms.py
+++ b/app/forms.py
@@ -1,6 +1,7 @@
 from typing import Optional
 from flask_wtf import FlaskForm
-from wtforms import BooleanField, FileField, StringField, PasswordField, SubmitField, IntegerField, DateTimeLocalField
+from pytz import all_timezones
+from wtforms import BooleanField, FileField, SelectField, StringField, PasswordField, SubmitField, IntegerField, DateTimeLocalField
 from wtforms.validators import DataRequired, Length, EqualTo, ValidationError, Email, Optional, NumberRange
 from app.models import User
 from datetime import datetime
@@ -85,6 +86,7 @@ class ProfileForm(FlaskForm):
     name = StringField('Name', validators=[Optional()])
     email = StringField('Email', validators=[Optional(), Email()])
     profile_pic = FileField('Profile Picture (optional)')
+    timezone = SelectField('Timezone', choices=[(tz, tz) for tz in all_timezones])
     systolic_threshold = IntegerField(
         'Systolic Threshold (mmHg)', 
         validators=[Optional(), NumberRange(min=90, max=200)]
diff --git a/app/models.py b/app/models.py
index 82383d8..e787c3e 100644
--- a/app/models.py
+++ b/app/models.py
@@ -18,6 +18,7 @@ class Profile(db.Model):
     systolic_threshold = db.Column(db.Integer, default=140)
     diastolic_threshold = db.Column(db.Integer, default=90)
     dark_mode = db.Column(db.Boolean, default=False)
+    timezone = db.Column(db.String(50), default='UTC')  # e.g., 'Australia/Sydney'
 
 class Reading(db.Model):
     id = db.Column(db.Integer, primary_key=True)
diff --git a/app/routes.py b/app/routes.py
index d35f94b..63aeb21 100644
--- a/app/routes.py
+++ b/app/routes.py
@@ -4,6 +4,7 @@ from io import StringIO
 import io
 from flask import Blueprint, Response, make_response, render_template, redirect, request, send_file, url_for, flash
 import humanize
+from pytz import timezone, utc
 from sqlalchemy import func
 from werkzeug.security import generate_password_hash, check_password_hash
 from werkzeug.http import http_date
@@ -177,10 +178,15 @@ def dashboard():
     # Fetch readings
     readings = readings_query.order_by(Reading.timestamp.desc()).all()
 
-    # Add relative timestamps to readings
+    # Fetch the user's timezone (default to 'UTC' if none is set)
+    user_timezone = current_user.profile.timezone if current_user.profile and current_user.profile.timezone else 'UTC'
+    local_tz = timezone(user_timezone)
+
+    # Add relative & local timestamps to readings
     now = datetime.utcnow()
     for reading in readings:
         reading.relative_timestamp = humanize.naturaltime(now - reading.timestamp)
+        reading.local_timestamp = utc.localize(reading.timestamp).astimezone(local_tz)
 
     # Calculate weekly summary and progress badges
     systolic_avg, diastolic_avg, heart_rate_avg = calculate_weekly_summary(readings)
@@ -248,10 +254,20 @@ def edit_reading(reading_id):
     if reading.user_id != current_user.id:
         flash('You are not authorized to edit this reading.', 'danger')
         return redirect(url_for('main.dashboard'))
+    
+    # Fetch the user's timezone (default to 'UTC' if none is set)
+    user_timezone = current_user.profile.timezone if current_user.profile and current_user.profile.timezone else 'UTC'
+    local_tz = timezone(user_timezone)
+
+    reading.local_timestamp = utc.localize(reading.timestamp).astimezone(local_tz)
 
     form = ReadingForm(obj=reading)  # Populate form with existing reading data
+    form.timestamp.data = reading.local_timestamp
     if form.validate_on_submit():
-        reading.timestamp = form.timestamp.data
+        # Convert the local timestamp back to UTC for saving
+        local_timestamp = form.timestamp.data
+        reading.timestamp = user_timezone.localize(local_timestamp).astimezone(utc)
+
         reading.systolic = form.systolic.data
         reading.diastolic = form.diastolic.data
         reading.heart_rate = form.heart_rate.data
@@ -306,6 +322,7 @@ def profile():
         profile.systolic_threshold = form.systolic_threshold.data or profile.systolic_threshold
         profile.diastolic_threshold = form.diastolic_threshold.data or profile.diastolic_threshold
         profile.dark_mode = form.dark_mode.data
+        profile.timezone = form.timezone.data
 
         # Handle profile picture upload
         if form.profile_pic.data:
diff --git a/app/static/css/tailwind.css b/app/static/css/tailwind.css
index 3bc80b1..f010bb8 100644
--- a/app/static/css/tailwind.css
+++ b/app/static/css/tailwind.css
@@ -608,58 +608,42 @@ video {
   position: relative;
 }
 
-.inset-0 {
-  inset: 0px;
-}
-
-.top-0 {
-  top: 0px;
-}
-
-.right-2 {
-  right: 0.5rem;
-}
-
-.top-2 {
-  top: 0.5rem;
-}
-
-.bottom-2 {
-  bottom: 0.5rem;
+.bottom-0 {
+  bottom: 0px;
 }
 
 .left-4 {
   left: 1rem;
 }
 
+.right-0 {
+  right: 0px;
+}
+
+.right-2 {
+  right: 0.5rem;
+}
+
 .right-4 {
   right: 1rem;
 }
 
+.top-0 {
+  top: 0px;
+}
+
+.top-2 {
+  top: 0.5rem;
+}
+
 .top-4 {
   top: 1rem;
 }
 
-.top-6 {
-  top: 1.5rem;
-}
-
 .top-5 {
   top: 1.25rem;
 }
 
-.bottom-0 {
-  bottom: 0px;
-}
-
-.left-0 {
-  left: 0px;
-}
-
-.right-0 {
-  right: 0px;
-}
-
 .z-10 {
   z-index: 10;
 }
@@ -673,16 +657,6 @@ video {
   margin-right: auto;
 }
 
-.my-2 {
-  margin-top: 0.5rem;
-  margin-bottom: 0.5rem;
-}
-
-.my-3 {
-  margin-top: 0.75rem;
-  margin-bottom: 0.75rem;
-}
-
 .mb-2 {
   margin-bottom: 0.5rem;
 }
@@ -755,14 +729,6 @@ video {
   display: flex;
 }
 
-.inline-flex {
-  display: inline-flex;
-}
-
-.table {
-  display: table;
-}
-
 .grid {
   display: grid;
 }
@@ -780,14 +746,14 @@ video {
   height: 4rem;
 }
 
-.h-24 {
-  height: 6rem;
-}
-
 .h-4 {
   height: 1rem;
 }
 
+.h-44 {
+  height: 11rem;
+}
+
 .h-5 {
   height: 1.25rem;
 }
@@ -800,34 +766,18 @@ video {
   height: 2rem;
 }
 
-.h-3 {
-  height: 0.75rem;
-}
-
-.h-28 {
-  height: 7rem;
-}
-
-.h-32 {
-  height: 8rem;
-}
-
-.h-44 {
-  height: 11rem;
-}
-
 .w-16 {
   width: 4rem;
 }
 
-.w-24 {
-  width: 6rem;
-}
-
 .w-4 {
   width: 1rem;
 }
 
+.w-44 {
+  width: 11rem;
+}
+
 .w-5 {
   width: 1.25rem;
 }
@@ -844,26 +794,6 @@ video {
   width: 100%;
 }
 
-.w-3 {
-  width: 0.75rem;
-}
-
-.w-28 {
-  width: 7rem;
-}
-
-.w-32 {
-  width: 8rem;
-}
-
-.w-44 {
-  width: 11rem;
-}
-
-.max-w-2xl {
-  max-width: 42rem;
-}
-
 .max-w-4xl {
   max-width: 56rem;
 }
@@ -892,10 +822,6 @@ video {
   flex-grow: 1;
 }
 
-.border-collapse {
-  border-collapse: collapse;
-}
-
 .transform {
   transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
 }
@@ -940,17 +866,12 @@ video {
   gap: 1rem;
 }
 
-.gap-8 {
-  gap: 2rem;
-}
-
 .gap-6 {
   gap: 1.5rem;
 }
 
-.gap-x-4 {
-  -moz-column-gap: 1rem;
-       column-gap: 1rem;
+.gap-8 {
+  gap: 2rem;
 }
 
 .space-x-2 > :not([hidden]) ~ :not([hidden]) {
@@ -983,24 +904,6 @@ video {
   margin-bottom: calc(1.5rem * var(--tw-space-y-reverse));
 }
 
-.overflow-hidden {
-  overflow: hidden;
-}
-
-.overflow-x-auto {
-  overflow-x: auto;
-}
-
-.truncate {
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
-}
-
-.whitespace-nowrap {
-  white-space: nowrap;
-}
-
 .rounded {
   border-radius: 0.25rem;
 }
@@ -1013,10 +916,6 @@ video {
   border-radius: 0.5rem;
 }
 
-.rounded-md {
-  border-radius: 0.375rem;
-}
-
 .border {
   border-width: 1px;
 }
@@ -1033,6 +932,11 @@ video {
   border-bottom-width: 2px;
 }
 
+.border-blue-600 {
+  --tw-border-opacity: 1;
+  border-color: rgb(37 99 235 / var(--tw-border-opacity, 1));
+}
+
 .border-gray-300 {
   --tw-border-opacity: 1;
   border-color: rgb(209 213 219 / var(--tw-border-opacity, 1));
@@ -1043,16 +947,6 @@ video {
   border-color: rgb(255 255 255 / var(--tw-border-opacity, 1));
 }
 
-.border-blue-600 {
-  --tw-border-opacity: 1;
-  border-color: rgb(37 99 235 / var(--tw-border-opacity, 1));
-}
-
-.border-green-200 {
-  --tw-border-opacity: 1;
-  border-color: rgb(187 247 208 / var(--tw-border-opacity, 1));
-}
-
 .bg-blue-600 {
   --tw-bg-opacity: 1;
   background-color: rgb(37 99 235 / var(--tw-bg-opacity, 1));
@@ -1108,16 +1002,6 @@ video {
   background-color: rgb(255 255 255 / var(--tw-bg-opacity, 1));
 }
 
-.bg-blue-100 {
-  --tw-bg-opacity: 1;
-  background-color: rgb(219 234 254 / var(--tw-bg-opacity, 1));
-}
-
-.bg-green-50 {
-  --tw-bg-opacity: 1;
-  background-color: rgb(240 253 244 / var(--tw-bg-opacity, 1));
-}
-
 .bg-gradient-to-r {
   background-image: linear-gradient(to right, var(--tw-gradient-stops));
 }
@@ -1141,6 +1025,14 @@ video {
      object-fit: cover;
 }
 
+.p-0 {
+  padding: 0px;
+}
+
+.p-1 {
+  padding: 0.25rem;
+}
+
 .p-2 {
   padding: 0.5rem;
 }
@@ -1161,14 +1053,6 @@ video {
   padding: 2rem;
 }
 
-.p-1 {
-  padding: 0.25rem;
-}
-
-.p-0 {
-  padding: 0px;
-}
-
 .px-2 {
   padding-left: 0.5rem;
   padding-right: 0.5rem;
@@ -1189,11 +1073,6 @@ video {
   padding-right: 2rem;
 }
 
-.py-1 {
-  padding-top: 0.25rem;
-  padding-bottom: 0.25rem;
-}
-
 .py-16 {
   padding-top: 4rem;
   padding-bottom: 4rem;
@@ -1219,11 +1098,6 @@ video {
   padding-bottom: 1rem;
 }
 
-.px-3 {
-  padding-left: 0.75rem;
-  padding-right: 0.75rem;
-}
-
 .pl-2 {
   padding-left: 0.5rem;
 }
@@ -1232,10 +1106,6 @@ video {
   padding-top: 1.5rem;
 }
 
-.pt-2 {
-  padding-top: 0.5rem;
-}
-
 .text-left {
   text-align: left;
 }
@@ -1296,15 +1166,16 @@ video {
   font-weight: 600;
 }
 
-.uppercase {
-  text-transform: uppercase;
-}
-
 .text-blue-600 {
   --tw-text-opacity: 1;
   color: rgb(37 99 235 / var(--tw-text-opacity, 1));
 }
 
+.text-gray-400 {
+  --tw-text-opacity: 1;
+  color: rgb(156 163 175 / var(--tw-text-opacity, 1));
+}
+
 .text-gray-500 {
   --tw-text-opacity: 1;
   color: rgb(107 114 128 / var(--tw-text-opacity, 1));
@@ -1325,11 +1196,21 @@ video {
   color: rgb(31 41 55 / var(--tw-text-opacity, 1));
 }
 
+.text-green-600 {
+  --tw-text-opacity: 1;
+  color: rgb(22 163 74 / var(--tw-text-opacity, 1));
+}
+
 .text-green-800 {
   --tw-text-opacity: 1;
   color: rgb(22 101 52 / var(--tw-text-opacity, 1));
 }
 
+.text-red-500 {
+  --tw-text-opacity: 1;
+  color: rgb(239 68 68 / var(--tw-text-opacity, 1));
+}
+
 .text-red-600 {
   --tw-text-opacity: 1;
   color: rgb(220 38 38 / var(--tw-text-opacity, 1));
@@ -1340,31 +1221,6 @@ video {
   color: rgb(255 255 255 / var(--tw-text-opacity, 1));
 }
 
-.text-gray-400 {
-  --tw-text-opacity: 1;
-  color: rgb(156 163 175 / var(--tw-text-opacity, 1));
-}
-
-.text-green-600 {
-  --tw-text-opacity: 1;
-  color: rgb(22 163 74 / var(--tw-text-opacity, 1));
-}
-
-.text-red-500 {
-  --tw-text-opacity: 1;
-  color: rgb(239 68 68 / var(--tw-text-opacity, 1));
-}
-
-.text-blue-800 {
-  --tw-text-opacity: 1;
-  color: rgb(30 64 175 / var(--tw-text-opacity, 1));
-}
-
-.text-green-700 {
-  --tw-text-opacity: 1;
-  color: rgb(21 128 61 / var(--tw-text-opacity, 1));
-}
-
 .no-underline {
   text-decoration-line: none;
 }
@@ -1401,12 +1257,6 @@ video {
   transition-duration: 150ms;
 }
 
-.transition-all {
-  transition-property: all;
-  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
-  transition-duration: 150ms;
-}
-
 .transition-shadow {
   transition-property: box-shadow;
   transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
@@ -1433,9 +1283,9 @@ video {
   background-color: rgb(156 163 175 / var(--tw-bg-opacity, 1));
 }
 
-.hover\:bg-gray-50:hover {
+.hover\:bg-green-200:hover {
   --tw-bg-opacity: 1;
-  background-color: rgb(249 250 251 / var(--tw-bg-opacity, 1));
+  background-color: rgb(187 247 208 / var(--tw-bg-opacity, 1));
 }
 
 .hover\:bg-green-700:hover {
@@ -1448,41 +1298,11 @@ video {
   background-color: rgb(185 28 28 / var(--tw-bg-opacity, 1));
 }
 
-.hover\:bg-green-200:hover {
-  --tw-bg-opacity: 1;
-  background-color: rgb(187 247 208 / var(--tw-bg-opacity, 1));
-}
-
-.hover\:bg-green-100:hover {
-  --tw-bg-opacity: 1;
-  background-color: rgb(220 252 231 / var(--tw-bg-opacity, 1));
-}
-
-.hover\:text-blue-800:hover {
-  --tw-text-opacity: 1;
-  color: rgb(30 64 175 / var(--tw-text-opacity, 1));
-}
-
 .hover\:text-gray-200:hover {
   --tw-text-opacity: 1;
   color: rgb(229 231 235 / var(--tw-text-opacity, 1));
 }
 
-.hover\:text-gray-900:hover {
-  --tw-text-opacity: 1;
-  color: rgb(17 24 39 / var(--tw-text-opacity, 1));
-}
-
-.hover\:text-red-800:hover {
-  --tw-text-opacity: 1;
-  color: rgb(153 27 27 / var(--tw-text-opacity, 1));
-}
-
-.hover\:text-white:hover {
-  --tw-text-opacity: 1;
-  color: rgb(255 255 255 / var(--tw-text-opacity, 1));
-}
-
 .hover\:text-gray-600:hover {
   --tw-text-opacity: 1;
   color: rgb(75 85 99 / var(--tw-text-opacity, 1));
@@ -1493,11 +1313,21 @@ video {
   color: rgb(31 41 55 / var(--tw-text-opacity, 1));
 }
 
+.hover\:text-gray-900:hover {
+  --tw-text-opacity: 1;
+  color: rgb(17 24 39 / var(--tw-text-opacity, 1));
+}
+
 .hover\:text-red-700:hover {
   --tw-text-opacity: 1;
   color: rgb(185 28 28 / var(--tw-text-opacity, 1));
 }
 
+.hover\:text-white:hover {
+  --tw-text-opacity: 1;
+  color: rgb(255 255 255 / var(--tw-text-opacity, 1));
+}
+
 .hover\:underline:hover {
   text-decoration-line: underline;
 }
@@ -1517,16 +1347,6 @@ video {
   border-color: rgb(59 130 246 / var(--tw-border-opacity, 1));
 }
 
-.focus\:border-gray-400:focus {
-  --tw-border-opacity: 1;
-  border-color: rgb(156 163 175 / var(--tw-border-opacity, 1));
-}
-
-.focus\:border-red-500:focus {
-  --tw-border-opacity: 1;
-  border-color: rgb(239 68 68 / var(--tw-border-opacity, 1));
-}
-
 .focus\:text-white:focus {
   --tw-text-opacity: 1;
   color: rgb(255 255 255 / var(--tw-text-opacity, 1));
@@ -1548,21 +1368,11 @@ video {
   --tw-ring-color: rgb(59 130 246 / var(--tw-ring-opacity, 1));
 }
 
-.focus\:ring-gray-400:focus {
-  --tw-ring-opacity: 1;
-  --tw-ring-color: rgb(156 163 175 / var(--tw-ring-opacity, 1));
-}
-
 .focus\:ring-green-500:focus {
   --tw-ring-opacity: 1;
   --tw-ring-color: rgb(34 197 94 / var(--tw-ring-opacity, 1));
 }
 
-.focus\:ring-red-500:focus {
-  --tw-ring-opacity: 1;
-  --tw-ring-color: rgb(239 68 68 / var(--tw-ring-opacity, 1));
-}
-
 .group:hover .group-hover\:scale-105 {
   --tw-scale-x: 1.05;
   --tw-scale-y: 1.05;
@@ -1573,12 +1383,6 @@ video {
   text-decoration-line: underline;
 }
 
-@media (min-width: 640px) {
-  .sm\:p-0 {
-    padding: 0px;
-  }
-}
-
 @media (min-width: 768px) {
   .md\:w-auto {
     width: auto;
diff --git a/app/templates/dashboard.html b/app/templates/dashboard.html
index de28e81..9573657 100644
--- a/app/templates/dashboard.html
+++ b/app/templates/dashboard.html
@@ -107,7 +107,7 @@
                         <path stroke-linecap="round" stroke-linejoin="round"
                             d="M12 8v4l3 3m9-3a9 9 0 1 1-18 0 9 9 0 0 1 18 0z" />
                     </svg>
-                    <span title="{{ reading.timestamp.strftime('%d %b %Y, %I:%M %p') }}">
+                    <span title="{{ reading.local_timestamp.strftime('%d %b %Y, %I:%M %p') }}">
                         {{ reading.relative_timestamp }}
                     </span>
                 </div>
@@ -163,7 +163,7 @@
                     <p class="text-xs text-gray-600 mt-1">{{ reading.heart_rate }} bpm</p>
                     <!-- Timestamp -->
                     <div class="text-xs text-gray-500 mt-1">
-                        {{ reading.timestamp.strftime('%I:%M %p') }}
+                        {{ reading.local_timestamp.strftime('%I:%M %p') }}
                     </div>
                 </a>
                 {% endfor %}
@@ -222,7 +222,7 @@
                         <p class="text-xs text-gray-600 mt-1">{{ reading.heart_rate }} bpm</p>
                         <!-- Timestamp -->
                         <div class="text-xs text-gray-500 mt-1">
-                            {{ reading.timestamp.strftime('%I:%M %p') }}
+                            {{ reading.local_timestamp.strftime('%I:%M %p') }}
                         </div>
                     </a>
                     {% endfor %}
diff --git a/app/templates/profile.html b/app/templates/profile.html
index 48d8b27..02cc65c 100644
--- a/app/templates/profile.html
+++ b/app/templates/profile.html
@@ -57,6 +57,12 @@
                 focus:ring-blue-500") }}
             </div>
 
+            <div class="mb-4">
+                {{ form.timezone.label(class="block text-sm font-medium text-gray-700") }}
+                {{ form.timezone(class="w-full p-2 border rounded focus:outline-none focus:ring-2 focus:ring-blue-500")
+                }}
+            </div>
+
             <div class="mb-4 flex items-center">
                 {{ form.dark_mode }}
                 {{ form.dark_mode.label(class="ml-2 text-sm font-medium text-gray-700") }}
diff --git a/migrations/versions/5e5a1b78b966_add_timezone_to_profile_model.py b/migrations/versions/5e5a1b78b966_add_timezone_to_profile_model.py
new file mode 100644
index 0000000..5c0b10b
--- /dev/null
+++ b/migrations/versions/5e5a1b78b966_add_timezone_to_profile_model.py
@@ -0,0 +1,32 @@
+"""Add timezone to Profile model
+
+Revision ID: 5e5a1b78b966
+Revises: 59097bee8942
+Create Date: 2024-12-28 00:46:52.941616
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '5e5a1b78b966'
+down_revision = '59097bee8942'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('profile', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('timezone', sa.String(length=50), nullable=True))
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('profile', schema=None) as batch_op:
+        batch_op.drop_column('timezone')
+
+    # ### end Alembic commands ###
diff --git a/requirements.txt b/requirements.txt
index c0d8f5c..cee4eec 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,6 +24,7 @@ packaging==24.2
 pillow==11.0.0
 psycopg2==2.9.10
 psycopg2-binary==2.9.10
+pytz==2024.2
 SQLAlchemy==2.0.36
 typing-extensions==4.12.2
 werkzeug==3.1.3