diff --git a/crabfit-frontend/src/components/AvailabilityEditor/AvailabilityEditor.tsx b/crabfit-frontend/src/components/AvailabilityEditor/AvailabilityEditor.tsx
new file mode 100644
index 0000000..4254ab5
--- /dev/null
+++ b/crabfit-frontend/src/components/AvailabilityEditor/AvailabilityEditor.tsx
@@ -0,0 +1,112 @@
+import { useState, useRef, Fragment } from 'react';
+import dayjs from 'dayjs';
+import localeData from 'dayjs/plugin/localeData';
+import customParseFormat from 'dayjs/plugin/customParseFormat';
+
+import {
+	Wrapper,
+	Container,
+	Date,
+	DateLabel,
+	DayLabel,
+	Spacer,
+	TimeLabels,
+	TimeLabel,
+	TimeSpace,
+} from 'components/AvailabilityViewer/availabilityViewerStyle';
+import { Time } from './availabilityEditorStyle';
+
+dayjs.extend(localeData);
+dayjs.extend(customParseFormat);
+
+const AvailabilityEditor = ({
+	dates,
+	times,
+	value = [],
+	onChange,
+	...props
+}) => {
+	const [selectingTimes, _setSelectingTimes] = useState([]);
+	const staticSelectingTimes = useRef([]);
+	const setSelectingTimes = newTimes => {
+		staticSelectingTimes.current = newTimes;
+		_setSelectingTimes(newTimes);
+	};
+
+	const startPos = useRef({});
+	const staticMode = useRef(null);
+	const [mode, _setMode] = useState(staticMode.current);
+	const setMode = newMode => {
+		staticMode.current = newMode;
+		_setMode(newMode);
+	};
+
+	return (
+		<Wrapper>
+			<Container>
+				<TimeLabels>
+					{times.concat([`${parseInt(times[times.length-1].slice(0, 2))+1}00`]).map((time, i) =>
+						<TimeSpace key={i} time={time}>
+							{time.slice(-2) === '00' && <TimeLabel>{dayjs().hour(time.slice(0, 2)).minute(time.slice(-2)).format('h A')}</TimeLabel>}
+						</TimeSpace>
+					)}
+				</TimeLabels>
+				{dates.map((date, x) => {
+					const parsedDate = dayjs(date, 'DDMMYYYY');
+					const last = dates.length === x+1 || dayjs(dates[x+1], 'DDMMYYYY').diff(parsedDate, 'day') > 1;
+					return (
+						<Fragment key={x}>
+							<Date className={last ? 'last' : ''}>
+								<DateLabel>{parsedDate.format('MMM D')}</DateLabel>
+								<DayLabel>{parsedDate.format('ddd')}</DayLabel>
+
+								{times.map((time, y) =>
+									<Time
+										key={x+y}
+										time={time}
+										className="time"
+										selected={value.includes(`${time}-${date}`)}
+										selecting={selectingTimes.includes(`${time}-${date}`)}
+										mode={mode}
+										onPointerDown={(e) => {
+											e.preventDefault();
+											startPos.current = {x, y};
+											setMode(value.includes(`${time}-${date}`) ? 'remove' : 'add');
+											setSelectingTimes([`${time}-${date}`]);
+											e.currentTarget.releasePointerCapture(e.pointerId);
+
+											document.addEventListener('pointerup', () => {
+												if (staticMode.current === 'add') {
+													onChange([...value, ...staticSelectingTimes.current]);
+												} else if (staticMode.current === 'remove') {
+													onChange(value.filter(t => !staticSelectingTimes.current.includes(t)));
+												}
+												setMode(null);
+											}, { once: true });
+										}}
+										onPointerEnter={() => {
+											if (staticMode.current) {
+												let found = [];
+												for (let cy = Math.min(startPos.current.y, y); cy < Math.max(startPos.current.y, y)+1; cy++) {
+													for (let cx = Math.min(startPos.current.x, x); cx < Math.max(startPos.current.x, x)+1; cx++) {
+														found.push({y: cy, x: cx});
+													}
+												}
+												setSelectingTimes(found.map(d => `${times[d.y]}-${dates[d.x]}`));
+											}
+										}}
+									/>
+								)}
+							</Date>
+							{last && dates.length !== x+1 && (
+								<Spacer />
+							)}
+						</Fragment>
+					);
+				})}
+			</Container>
+		</Wrapper>
+	);
+};
+
+export default AvailabilityEditor;
diff --git a/crabfit-frontend/src/components/AvailabilityEditor/availabilityEditorStyle.ts b/crabfit-frontend/src/components/AvailabilityEditor/availabilityEditorStyle.ts
new file mode 100644
index 0000000..0046eb1
--- /dev/null
+++ b/crabfit-frontend/src/components/AvailabilityEditor/availabilityEditorStyle.ts
@@ -0,0 +1,21 @@
+import styled from '@emotion/styled';
+
+export const Time = styled.div`
+	height: 10px;
+	border-left: 1px solid ${props => props.theme.primaryDark};
+	touch-action: none;
+
+	${props => props.time.slice(-2) === '00' && `
+		border-top: 1px solid ${props.theme.primaryDark};
+	`}
+	${props => props.time.slice(-2) === '30' && `
+		border-top: 1px dotted ${props.theme.primaryDark};
+	`}
+
+	${props => (props.selected || (props.mode === 'add' && props.selecting)) && `
+		background-color: ${props.theme.primary};
+	`};
+	${props => props.mode === 'remove' && props.selecting && `
+		background-color: initial;
+	`};
+`;
diff --git a/crabfit-frontend/src/components/AvailabilityViewer/AvailabilityViewer.tsx b/crabfit-frontend/src/components/AvailabilityViewer/AvailabilityViewer.tsx
index 31a6e9b..24d67e6 100644
--- a/crabfit-frontend/src/components/AvailabilityViewer/AvailabilityViewer.tsx
+++ b/crabfit-frontend/src/components/AvailabilityViewer/AvailabilityViewer.tsx
@@ -1,4 +1,4 @@
-import { useState } from 'react';
+import { useState, Fragment } from 'react';
 import dayjs from 'dayjs';
 import localeData from 'dayjs/plugin/localeData';
 import customParseFormat from 'dayjs/plugin/customParseFormat';
@@ -15,6 +15,9 @@ import {
 	TooltipTitle,
 	TooltipDate,
 	TooltipContent,
+	TimeLabels,
+	TimeLabel,
+	TimeSpace,
 } from './availabilityViewerStyle';
 
 dayjs.extend(localeData);
@@ -31,12 +34,19 @@ const AvailabilityViewer = ({
 	return (
 		<Wrapper>
 			<Container>
+				<TimeLabels>
+					{times.concat([`${parseInt(times[times.length-1].slice(0, 2))+1}00`]).map((time, i) =>
+						<TimeSpace key={i} time={time}>
+							{time.slice(-2) === '00' && <TimeLabel>{dayjs().hour(time.slice(0, 2)).minute(time.slice(-2)).format('h A')}</TimeLabel>}
+						</TimeSpace>
+					)}
+				</TimeLabels>
 				{dates.map((date, i) => {
 					const parsedDate = dayjs(date, 'DDMMYYYY');
 					const last = dates.length === i+1 || dayjs(dates[i+1], 'DDMMYYYY').diff(parsedDate, 'day') > 1;
 					return (
-						<>
-							<Date key={i} className={last ? 'last' : ''}>
+						<Fragment key={i}>
+							<Date className={last ? 'last' : ''}>
 								<DateLabel>{parsedDate.format('MMM D')}</DateLabel>
 								<DayLabel>{parsedDate.format('ddd')}</DayLabel>
 
@@ -53,8 +63,8 @@ const AvailabilityViewer = ({
 											onMouseEnter={(e) => {
 												const cellBox = e.currentTarget.getBoundingClientRect();
 												setTooltip({
-													x: Math.round(cellBox.x + cellBox.width),
-													y: Math.round(cellBox.y + cellBox.height),
+													x: Math.round(cellBox.x + cellBox.width/2),
+													y: Math.round(cellBox.y + cellBox.height)+6,
 													available: `${peopleHere.length} / ${people.length} available`,
 													date: parsedDate.hour(time.slice(0, 2)).minute(time.slice(-2)).format('h:mma ddd, D MMM YYYY'),
 													people: peopleHere.join(', '),
@@ -70,7 +80,7 @@ const AvailabilityViewer = ({
 							{last && dates.length !== i+1 && (
 								<Spacer />
 							)}
-						</>
+						</Fragment>
 					);
 				})}
 			</Container>
diff --git a/crabfit-frontend/src/components/AvailabilityViewer/availabilityViewerStyle.ts b/crabfit-frontend/src/components/AvailabilityViewer/availabilityViewerStyle.ts
index da02c15..15e9103 100644
--- a/crabfit-frontend/src/components/AvailabilityViewer/availabilityViewerStyle.ts
+++ b/crabfit-frontend/src/components/AvailabilityViewer/availabilityViewerStyle.ts
@@ -9,8 +9,12 @@ export const Container = styled.div`
 	display: inline-flex;
 	box-sizing: border-box;
   min-width: 100%;
-	align-items: flex-start;
+	align-items: flex-end;
 	padding: 0 calc(calc(100% - 600px) / 2);
+
+	@media (max-width: 660px) {
+		padding: 0 30px;
+	}
 `;
 
 export const Date = styled.div`
@@ -19,6 +23,7 @@ export const Date = styled.div`
 	flex-direction: column;
 	width: 60px;
 	min-width: 60px;
+	margin-bottom: 10px;
 
 	& .time:last-of-type {
 		border-bottom: 1px solid ${props => props.theme.primaryDark};
@@ -63,13 +68,15 @@ export const Spacer = styled.div`
 
 export const Tooltip = styled.div`
 	position: fixed;
-	top: ${props => props.y+6}px;
-	left: ${props => props.x+6}px;
+	top: ${props => props.y}px;
+	left: ${props => props.x}px;
+	transform: translateX(-50%);
 	border: 1px solid ${props => props.theme.text};
 	border-radius: 3px;
 	padding: 4px 8px;
-	background-color: ${props => props.theme.background};
+	background-color: ${props => props.theme.background}99;
 	max-width: 200px;
+	pointer-events: none;
 `;
 
 export const TooltipTitle = styled.span`
@@ -89,3 +96,33 @@ export const TooltipContent = styled.span`
 	font-size: 13px;
 	display: block;
 `;
+
+export const TimeLabels = styled.div`
+	flex-shrink: 0;
+	display: flex;
+	flex-direction: column;
+	width: 40px;
+	padding-right: 6px;
+`;
+
+export const TimeSpace = styled.div`
+	height: 10px;
+	position: relative;
+
+	${props => props.time.slice(-2) === '00' && `
+		border-top: 1px solid transparent;
+	`}
+	${props => props.time.slice(-2) === '30' && `
+		border-top: 1px dotted transparent;
+	`}
+`;
+
+export const TimeLabel = styled.label`
+	display: block;
+	position: absolute;
+	top: -.7em;
+	font-size: 12px;
+	text-align: right;
+	user-select: none;
+	width: 100%;
+`;
diff --git a/crabfit-frontend/src/components/Donate/Donate.tsx b/crabfit-frontend/src/components/Donate/Donate.tsx
index 6555e62..4c28fc6 100644
--- a/crabfit-frontend/src/components/Donate/Donate.tsx
+++ b/crabfit-frontend/src/components/Donate/Donate.tsx
@@ -6,6 +6,7 @@ const Donate = () => (
 			<Button
 				buttonHeight="30px"
 				buttonWidth="90px"
+				type="button"
 			>Donate</Button>
 		</a>
 	</div>
diff --git a/crabfit-frontend/src/components/index.ts b/crabfit-frontend/src/components/index.ts
index 707a37f..5b31173 100644
--- a/crabfit-frontend/src/components/index.ts
+++ b/crabfit-frontend/src/components/index.ts
@@ -6,6 +6,7 @@ export { default as TimeRangeField } from './TimeRangeField/TimeRangeField';
 export { default as Button } from './Button/Button';
 export { default as Legend } from './Legend/Legend';
 export { default as AvailabilityViewer } from './AvailabilityViewer/AvailabilityViewer';
+export { default as AvailabilityEditor } from './AvailabilityEditor/AvailabilityEditor';
 
 export { default as Center } from './Center/Center';
 export { default as Donate } from './Donate/Donate';
diff --git a/crabfit-frontend/src/pages/Event/Event.tsx b/crabfit-frontend/src/pages/Event/Event.tsx
index 71f18ef..7a52090 100644
--- a/crabfit-frontend/src/pages/Event/Event.tsx
+++ b/crabfit-frontend/src/pages/Event/Event.tsx
@@ -10,6 +10,7 @@ import {
 	Button,
 	Legend,
 	AvailabilityViewer,
+	AvailabilityEditor,
 } from 'components';
 
 import {
@@ -33,7 +34,11 @@ const Event = (props) => {
 	const { register, handleSubmit } = useForm();
 	const id = props.match.params.id;
 	const [timezone, setTimezone] = useState(Intl.DateTimeFormat().resolvedOptions().timeZone);
-	const [tab, setTab] = useState('group');
+	const [user, setUser] = useState({
+		name: 'Benji',
+		availability: [],
+	});
+	const [tab, setTab] = useState(user ? 'you' : 'group');
 
 	const onSubmit = data => console.log('submit', data);
 
@@ -49,36 +54,40 @@ const Event = (props) => {
 
 				<EventName>Event name ({id})</EventName>
 				<ShareInfo>https://page.url</ShareInfo>
-				<ShareInfo>Copy the link to this page, or share via <a href="#">Email</a> or <a href="#">Facebook</a>.</ShareInfo>
+				<ShareInfo>Copy the link to this page, or share via <a href="#test">Email</a> or <a href="#test">Facebook</a>.</ShareInfo>
 			</StyledMain>
 
 			<LoginSection id="login">
 				<StyledMain>
-					<h2>Sign in to add your availability</h2>
-					<LoginForm onSubmit={handleSubmit(onSubmit)}>
-						<TextField
-							label="Your name"
-							type="text"
-							name="name"
-							id="name"
-							inline
-							required
-							register={register}
-						/>
+					{!user && (
+						<>
+							<h2>Sign in to add your availability</h2>
+							<LoginForm onSubmit={handleSubmit(onSubmit)}>
+								<TextField
+									label="Your name"
+									type="text"
+									name="name"
+									id="name"
+									inline
+									required
+									register={register}
+								/>
 
-						<TextField
-							label="Password (optional)"
-							type="password"
-							name="password"
-							id="password"
-							inline
-							register={register}
-						/>
+								<TextField
+									label="Password (optional)"
+									type="password"
+									name="password"
+									id="password"
+									inline
+									register={register}
+								/>
 
-						<Button
-						>Login</Button>
-					</LoginForm>
-					<Info>These details are only for this event. Use a password to prevent others from changing your availability.</Info>
+								<Button
+								>Login</Button>
+							</LoginForm>
+							<Info>These details are only for this event. Use a password to prevent others from changing your availability.</Info>
+						</>
+					)}
 
 					<SelectField
 						label="Your time zone"
@@ -86,6 +95,7 @@ const Event = (props) => {
 						id="timezone"
 						inline
 						value={timezone}
+						onChange={value => setTimezone(value)}
 						options={timezones}
 					/>
 				</StyledMain>
@@ -97,13 +107,13 @@ const Event = (props) => {
 						href="#you"
 						onClick={e => {
 							e.preventDefault();
-							if (false) {
+							if (user) {
 								setTab('you');
 							}
 						}}
 						selected={tab === 'you'}
-						disabled={true}
-						title={true ? 'Login to set your availability' : ''}
+						disabled={!user}
+						title={user ? '' : 'Login to set your availability'}
 					>Your availability</Tab>
 					<Tab
 						href="#group"
@@ -119,45 +129,12 @@ const Event = (props) => {
 			{tab === 'group' ? (
 				<section id="group">
 					<StyledMain>
-						<Legend min={0} max={1} />
-						<Center>Hover and click the calendar below to see who is available</Center>
+						<Legend min={0} max={3} />
+						<Center>Hover or tap the calendar below to see who is available</Center>
 					</StyledMain>
 					<AvailabilityViewer
 						dates={['03032021', '04032021', '05032021', '07032021', '08032021']}
-						times={[
-							'0900',
-							'0915',
-							'0930',
-							'0945',
-							'1000',
-							'1015',
-							'1030',
-							'1045',
-							'1100',
-							'1115',
-							'1130',
-							'1145',
-							'1200',
-							'1215',
-							'1230',
-							'1245',
-							'1300',
-							'1315',
-							'1330',
-							'1345',
-							'1400',
-							'1415',
-							'1430',
-							'1445',
-							'1500',
-							'1515',
-							'1530',
-							'1545',
-							'1600',
-							'1615',
-							'1630',
-							'1645',
-						]}
+						times={['0900', '0915', '0930', '0945', '1000', '1015', '1030', '1045', '1100', '1115', '1130', '1145', '1200', '1215', '1230', '1245', '1300', '1315', '1330', '1345', '1400', '1415', '1430', '1445', '1500', '1515', '1530', '1545', '1600', '1615', '1630', '1645']}
 						people={[{
 							name: 'James',
 							availability: [
@@ -175,7 +152,24 @@ const Event = (props) => {
 								'1400-08032021',
 								'1430-08032021',
 							],
-						}]}
+						},{
+							name: 'Phoebe',
+							availability: [
+								'1100-07032021',
+								'1115-07032021',
+								'1130-07032021',
+								'1145-07032021',
+								'1200-07032021',
+								'1215-07032021',
+								'1230-07032021',
+								'1245-07032021',
+								'1300-07032021',
+								'1315-07032021',
+								'1330-07032021',
+								'1345-07032021',
+								'1400-07032021',
+							],
+						},user]}
 					/>
 				</section>
 			) : (
@@ -183,6 +177,12 @@ const Event = (props) => {
 					<StyledMain>
 						<Center>Click and drag the calendar below to set your availabilities</Center>
 					</StyledMain>
+					<AvailabilityEditor
+						dates={['03032021', '04032021', '05032021', '07032021', '08032021']}
+						times={['0900', '0915', '0930', '0945', '1000', '1015', '1030', '1045', '1100', '1115', '1130', '1145', '1200', '1215', '1230', '1245', '1300', '1315', '1330', '1345', '1400', '1415', '1430', '1445', '1500', '1515', '1530', '1545', '1600', '1615', '1630', '1645']}
+						value={user.availability}
+						onChange={availability => setUser({ ...user, availability })}
+					/>
 				</section>
 			)}
 
diff --git a/crabfit-frontend/src/pages/Event/eventStyle.ts b/crabfit-frontend/src/pages/Event/eventStyle.ts
index 0723f4f..62a6ede 100644
--- a/crabfit-frontend/src/pages/Event/eventStyle.ts
+++ b/crabfit-frontend/src/pages/Event/eventStyle.ts
@@ -8,7 +8,7 @@ export const StyledMain = styled.div`
 
 export const Footer = styled.footer`
 	width: 600px;
-	margin: 20px auto;
+	margin: 50px auto 20px;
 	max-width: calc(100% - 60px);
 	display: flex;
 	align-items: center;
diff --git a/crabfit-frontend/src/theme/index.ts b/crabfit-frontend/src/theme/index.ts
index a35a3c0..29f9f72 100644
--- a/crabfit-frontend/src/theme/index.ts
+++ b/crabfit-frontend/src/theme/index.ts
@@ -10,7 +10,7 @@ const theme = {
 	},
 	dark: {
 		mode: 'dark',
-		background: '#111',
+		background: '#111111',
 		text: '#DDDDDD',
 		primary: '#F79E00',
 		primaryDark: '#F4BB60',