Skip the first day in the CFP availability form (#4210)

Author: marcoacierno

frontend/src/components/cfp-form/availability-section.tsx

@@ -5,7 +5,7 @@ import {
   Spacer,
   Text,
 } from "@python-italia/pycon-styleguide";
-import { eachDayOfInterval, format, parseISO } from "date-fns";
+import { addDays, eachDayOfInterval, format, parseISO } from "date-fns";
 import { Fragment } from "react";
 import { FormattedMessage } from "react-intl";
 import { useCurrentLanguage } from "~/locale/context";
@@ -16,21 +16,19 @@ const RANGES = ["am", "pm"];
 
 type Props = {
   conferenceData: CfpFormQuery;
-  selectedDuration: any;
   speakerAvailabilities: any;
   onChangeAvailability: any;
 };
 export const AvailabilitySection = ({
   conferenceData,
-  selectedDuration,
   speakerAvailabilities,
   onChangeAvailability,
 }: Props) => {
   const language = useCurrentLanguage();
   const {
     conference: { start, end },
   } = conferenceData;
-  const parsedStart = parseISO(start);
+  const parsedStart = addDays(parseISO(start), 1);
   const parsedEnd = parseISO(end);
   const daysBetween = eachDayOfInterval({ start: parsedStart, end: parsedEnd });
   const dateFormatter = new Intl.DateTimeFormat(language, {

frontend/src/components/cfp-form/index.tsx

@@ -336,9 +336,6 @@ export const CfpForm = ({
       <AvailabilitySection
         onChangeAvailability={onChangeAvailability}
         speakerAvailabilities={formState.values.speakerAvailabilities}
-        selectedDuration={allowedDurations.find(
-          (duration) => duration.id === formState.values.length,
-        )}
         conferenceData={conferenceData}
       />