diff --git a/data/migrations/20200502184450_account.js b/data/migrations/20200502184450_account.js
index 73582a3..ccad5b5 100644
--- a/data/migrations/20200502184450_account.js
+++ b/data/migrations/20200502184450_account.js
@@ -5,8 +5,8 @@ exports.up = (knex) => {
 		table.string('email').notNullable().unique();
 		table.string('password').notNullable();
 		table.string('timezone');
-		table.time('earliest_time');
-		table.time('latest_time');
+		table.string('earliest_time');
+		table.string('latest_string');
 		table.timestamps(true, true);
 	});
 };
diff --git a/data/migrations/20200502193249_meeting.js b/data/migrations/20200502193249_meeting.js
index 88ea0fd..6608ace 100644
--- a/data/migrations/20200502193249_meeting.js
+++ b/data/migrations/20200502193249_meeting.js
@@ -4,7 +4,6 @@ exports.up = (knex) => {
 		table.string('title').notNullable();
 		table.string('description');
 		table.time('start_time');
-		table.string('timezone').notNullable();
 		table.integer('duration').notNullable();
 		table.boolean('status').notNullable();
 		table.string('password');
diff --git a/data/migrations/20200502193341_participant.js b/data/migrations/20200502193341_participant.js
index 93a861e..5aaa81a 100644
--- a/data/migrations/20200502193341_participant.js
+++ b/data/migrations/20200502193341_participant.js
@@ -11,13 +11,10 @@ exports.up = (knex) => {
 			.references('account.id')
 			.onDelete('cascade');
 		table.primary(['meeting_id', 'account_id']);
-		table.time('earliest_time');
-		table.time('latest_time');
 		table.boolean('quorum');
 		table.boolean('mandatory');
-		table.boolean('host');
-		table.boolean('answered');
-		table.string('timezone').notNullable();
+		table.boolean('host').notNullable();
+		table.boolean('answered').notNullable();
 		table.timestamps(true, true);
 	});
 };
diff --git a/data/migrations/20200502193443_availability.js b/data/migrations/20200502193443_availability.js
index b0c6a0a..f0feccc 100644
--- a/data/migrations/20200502193443_availability.js
+++ b/data/migrations/20200502193443_availability.js
@@ -18,8 +18,7 @@ exports.up = (knex) => {
 			.onDelete('cascade');
 		table.boolean('preference').notNullable();
 		table.time('start_time').notNullable();
-		table.time('end_time').notNullable();
-		table.string('timezone').notNullable();
+		table.time('end_string').notNullable();
 		table.timestamps(true, true);
 	});
 };