TypeORM substracts 1 day of date 00:00:00 (probably a Tedious bug)

Question

I'm working with a legacy SQL Server dtabase that stores dates NOT in UTC format. I'm trying to insert a smalldatetime using TypeORM.

This is what TypeORM executes:

INSERT INTO foo(date) VALUES (@0)
-- PARAMS: SELECT * FROM @OutputTable -- PARAMETERS: [{"value":"2020-11-09T23:00:00.000Z","type":"smalldatetime","params":[]}]

This should save '2020-11-10 00:00:00' in DB (GMT +1, server also GMT +1) but, for some reason, is saving '2020-11-09 00:00:00'. I think when the result date that TypeORM tries to insert is 00:00:00 it doesn't change the day. I've tried with other timestamps and, as long as it's greater or equal 00:01:00 it works

• Operating System: Windows
• Node.js: v12.16.2
• Typescript: v4.0.3
• TypeORM: v0.2.28

UPDATE:

According to this thread: https://github.com/typeorm/typeorm/issues/3202 it probably has something to do with tedious version. Now problem is when I tried to update mssql 7.0.0-alpha.1 version (in order to update tedious) typeorm can't connect:

const serverSql: SqlServerConnectionOptions = {
        name: process.env.DB_SQL_DEFAULT_NAME,
        entities: [`${__dirname}/../../schemas/**/*.js`],
        type: 'mssql',
        host: process.env.DB_SQL_DEFAULT_HOST,
        port: Number(process.env.DB_SQL_DEFAULT_PORT),
        username: process.env.DB_SQL_DEFAULT_USER,
        password: process.env.DB_SQL_DEFAULT_PASSWORD,
        requestTimeout: 30000,
        options: {
          connectionIsolationLevel: 'READ_UNCOMMITTED',
          isolation: 'READ_UNCOMMITTED',
          enableArithAbort: false
        },
        pool: {
          acquireTimeoutMillis: 30000
        },
        logging: 'all'
      };
      await createConnections([serverSql]);

Throws this error: Connection error: The "config.options.connectionIsolationLevel" property must be of type number. Received type string (READ_UNCOMMITTED)