code: function getCLFOffset(date) {
  	const offset	= date.getTimezoneOffset().toString();
  	const op		= offset[0] === '-' ? '-' : '+';
  	let number		= offset.replace(op, '');
  
  	while (number.length < 4) {
  		number = `0${number}`;
  	}
  
  	return `${op}${number}`;
  }
docs: Return the offset from UTC in CLF format.
  @param {Date} date - The date
  @return {String} The offset.