Merge pull request #1362 from alphagov/letter-delivery-estimates

Add function to estimate letter delivery date

app/__init__.py

@@ -7,7 +7,6 @@ from time import monotonic
 
 import dateutil
 import itertools
-import pytz
 import ago
 from flask import (
     Flask,
@@ -55,6 +54,8 @@ from app.notify_client.organisations_client import OrganisationsClient
 from app.notify_client.models import AnonymousUser
 from app.notify_client.letter_jobs_client import LetterJobsClient
 
+from app.utils import gmt_timezones
+
 login_manager = LoginManager()
 csrf = CsrfProtect()
 
@@ -212,12 +213,6 @@ def syntax_highlight_json(code):
     return Markup(highlight(code, JavascriptLexer(), HtmlFormatter(noclasses=True)))
 
 
-def gmt_timezones(date):
-    date = dateutil.parser.parse(date)
-    forced_utc = date.replace(tzinfo=pytz.utc)
-    return forced_utc.astimezone(pytz.timezone('Europe/London'))
-
-
 def format_datetime(date):
     return '{} at {}'.format(
         format_date(date),