Several of Hilton’s cobranded credit cards offer annual free night certificates. While these certificates could once only be used for weekend nights, since the coronavirus pandemic, Hilton has given customers additional flexibility by allowing them to redeem free night certificates for weekday stays as well.Now, that customer-friendly change is here to stay: Effective immediately, Hilton free night certificates can now be used on any night of the week. This news was first reported by Frequent Miler.I used my Hilton free night certificate at the Conrad Punta de Mita this year. KYLE OLSEN/THE POINTS GUYAs a recap, Hilton Honors free night certificates must be redeemed within 12 months from the date that they’re issued. You can redeem free night certificates over the phone by calling Hilton at 800-446-6677.Here are the credit cards that earn free night certificates:Hilton Honors American Express Aspire CardEarn one free night certificate upon opening the card and each year after your account renewal.Earn a second free night certificate by spending $60,000 on the card in a calendar year.Current welcome bonus: Earn 150,000 points after you spend $4,000 on purchases in the first three months of account opening.The information for the Hilton Aspire card has been collected independently by The Points Guy. The card details on this page have not been reviewed or provided by the card issuer.Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.Hilton Honors American Express Surpass CardEarn one free night certificate after spending $15,000 on eligible purchases using the card in a calendar year.Current welcome bonus: If you apply today, you can earn 150,000 Hilton Honors bonus points after you spend $3,000 in purchases on the card in the first six months of card membership. Offer ends 04/05/2023.The Hilton Honors American Express Business CardEarn one free night certificate after spending $15,000 on eligible purchases using the card in a calendar year.Earn a second free night certificate after spending an additional $45,000 (for a total of $60,000) on eligible purchases using the card in a calendar year.Current welcome bonus: If you apply today, you can earn 165,000 Hilton Honors bonus points after you spend $5,000 in purchases on the card in the first three months of card membership. Offer ends 04/05/2023.With all of these cards, you can now redeem your free night certificate(s) for any day of the week, assuming there’s standard room availability.Bottom lineHilton has liberalized the terms of its free night certificates, permanently allowing customers to redeem them on any night of the week. Before the pandemic, you could only redeem these certificates on weekends.Overall, it’s great to see that Hilton is giving customers more opportunities to use their certificates.