One-en dashes (–) are used between dates, times and scores. There are no spaces used around the dash.The evening courses run from 6–9 p.m.
One-em dashes (—) are used between clauses when there is a sudden break or abrupt change in thought, or when expanding, explaining or digressing, etc. A space is placed on both sides of the dash.Johnson & Wales University — founded in 1914 as a business school — is a private, nonprofit, accredited institution offering undergraduate and graduate degree programs in business, hospitality, culinary, technology and education.
To insert, simultaneously strike