error: time zone "gmt-0500" not recognized

I am doing a simple INSERT INTO query. The database column in question is of type TIMESTAMPTZ. Here is my code segment:

let date_created = Date();

const res = await db.query(
  `INSERT INTO testtable1 (date_created
   VALUES ('${date_created}')`
);

Which produces an error: time zone "gmt-0500" not recognized

[charmander]

Date() returns a string. To create a Date object, you need new Date().

[joelmukuthu]

And also, identifiers (table names, column names) cannot be parameterized in an SQL query, so your query2 should be something like:

let query2 = {
  text: `
    INSERT INTO "${tables.users}"
      (uid, username, email, email_verified, date_created, last_login, password)
    VALUES ($1, $2, $3, $4, $5, $6, $7)
  `,
  values:
    [0, 'a', '[e-mail]', false, date_created, last_login, 'a']
  };

Or simply INSERT INTO "testtable", instead of using a variable. The key thing here is that you don’t use a placeholder for it; the same way you don’t use placeholders for the column names.

Note that, with this way of building up a query, tables.users should never be accepted as user input (e.g. from the POST body of an HTTP request). If it is user input, you’ll have to do more a lot more to guard against SQL injection. For example, with the query I’ve provided, an attacker could do something like this to delete all the data in the table:

const tables = { 
  users: 'testtable" (uid) values (1);delete from testtable;insert into "testtable' 
};
const query = { text: `INSERT INTO "${tables.users}" ...`