diff --git a/cara/apps/calculator/__init__.py b/cara/apps/calculator/__init__.py
index 9d7887f9..96f8bd83 100644
--- a/cara/apps/calculator/__init__.py
+++ b/cara/apps/calculator/__init__.py
@@ -4,7 +4,6 @@ import os
 from pathlib import Path
 
 import jinja2
-import mistune
 from tornado.web import Application, RequestHandler, StaticFileHandler
 
 from . import model_generator
@@ -12,6 +11,16 @@ from .report_generator import build_report
 from .user import AuthenticatedUser, AnonymousUser
 
 
+# The calculator version is based on a combination of the model version and the
+# semantic version of the calculator itself. The version uses the terms
+# "{MAJOR}.{MINOR}.{PATCH}" to describe the 3 distinct numbers constituing a version.
+# Effectively, if the model increases its MAJOR version then so too should this
+# calculator version. If the calculator needs to make breaking changes (e.g. change
+# form attributes) then it can also increase its MAJOR version without needing to
+# increase the overall CARA version (found at ``cara.__version__``).
+__version__ = "1.5.0"
+
+
 class BaseRequestHandler(RequestHandler):
     async def prepare(self):
         """Called at the beginning of a request before  `get`/`post`/etc."""
@@ -81,6 +90,7 @@ class CalculatorForm(BaseRequestHandler):
         report = template.render(
             user=self.current_user,
             xsrf_form_html=self.xsrf_form_html(),
+            calculator_version=__version__,
         )
         self.finish(report)
 
diff --git a/cara/apps/calculator/model_generator.py b/cara/apps/calculator/model_generator.py
index 14d30b45..baa164e1 100644
--- a/cara/apps/calculator/model_generator.py
+++ b/cara/apps/calculator/model_generator.py
@@ -7,6 +7,7 @@ import numpy as np
 
 from cara import models
 from cara import data
+from .. import calculator
 
 
 LOG = logging.getLogger(__name__)
@@ -551,7 +552,7 @@ def baseline_raw_form_data():
         'mask_type': 'Type I',
         'mask_wearing_option': 'mask_off',
         'mechanical_ventilation_type': '',
-        'model_version': 'v1.2.0',
+        'model_version': calculator.__version__,
         'opening_distance': '0.2',
         'event_month': 'January',
         'room_number': '123',
diff --git a/cara/apps/calculator/report_generator.py b/cara/apps/calculator/report_generator.py
index 046d27cd..3eb65193 100644
--- a/cara/apps/calculator/report_generator.py
+++ b/cara/apps/calculator/report_generator.py
@@ -260,13 +260,11 @@ def comparison_report(scenarios: typing.Dict[str, models.ExposureModel]):
 
 
 def build_report(base_url: str, model: models.ExposureModel, form: FormData):
-    now = datetime.now()
-    time = now.strftime("%d/%m/%Y %H:%M:%S")
-    request = {"the": "form", "request": "data"}
+    now = datetime.utcnow().astimezone()
+    time = now.strftime("%Y-%m-%d %H:%M:%S UTC")
 
     context = {
         'model': model,
-        'request': request,
         'form': form,
         'creation_date': time,
     }
diff --git a/cara/apps/calculator/templates/calculator.form.html.j2 b/cara/apps/calculator/templates/calculator.form.html.j2
index 9a281243..88993e2f 100644
--- a/cara/apps/calculator/templates/calculator.form.html.j2
+++ b/cara/apps/calculator/templates/calculator.form.html.j2
@@ -1,6 +1,5 @@
 {% extends "layout.html.j2" %}
 
-{% set MODEL_VERSION="v1.5.1" %}
 {% set DEBUG=False %}
 {% set active_page="calculator/" %}
 
@@ -20,7 +19,7 @@
 <div class="text-component text-component-page clearfix"></div>
 <div style="height: 8em; display: block;"></div>
 
-{{ MODEL_VERSION }} <span style="float:right; font-weight:bold">Please send feedback to <a href="mailto:CARA-dev@cern.ch">CARA-dev@cern.ch</a></span>
+v{{ calculator_version }} <span style="float:right; font-weight:bold">Please send feedback to <a href="mailto:CARA-dev@cern.ch">CARA-dev@cern.ch</a></span>
 <div>
     <img src="/static/images/cara_logo.png" style="height:175px; width:100px; display:inline-block; vertical-align:middle; object-fit:cover;">
     <h1 style="display:inline-block; vertical-align:middle;"><b>CARA - </b> COVID Airborne Risk Assessment calculator</h1>
@@ -33,7 +32,7 @@
 {% endif %}
 {{ xsrf_form_html }}
 
-<input type="hidden" name="model_version" value={{ MODEL_VERSION }}>
+<input type="hidden" name="model_version" value="{{ calculator_version }}">
 
 <div style="width: 33%; float:left;">
 
diff --git a/cara/apps/calculator/templates/report.html.j2 b/cara/apps/calculator/templates/report.html.j2
index 2b94d3e7..93996d71 100644
--- a/cara/apps/calculator/templates/report.html.j2
+++ b/cara/apps/calculator/templates/report.html.j2
@@ -17,7 +17,7 @@
 		<h1 style="display:inline-block; vertical-align:middle; margin-left:-30pt;">Report</h1>
 	</div>
 
-	<p class=subtitle> Created {{ creation_date }} using model version {{ form.model_version }}</p><br>
+	<p class=subtitle> Created {{ creation_date }} using model version v{{ form.model_version }}</p><br>
 
   <p><strong>Applicable rules: <br>
   Please ensure that this scenario conforms to current <a href="https://hse.cern/covid-19-information"> CERN HSE rules</a> (minimum ventilation requirements, mask wearing and the maximum number of people permitted in a space).</strong> <br>