Ceremony performed daily every hour on the hour in front of the Freedom Monument.
See www.lonelyplanet.com

Ceremony performed daily starting between 11:45 and noon in front of the Presidential Palace.
See freewalkingtoursperu.com

Ceremony performed on Sundays at 18:00 from June to September and at 16:00 the rest of the year in front of the Quirinal Palace.
See www.wantedinrome.com

Ceremony performed daily at noon at Buda Castle (Sandor Palace); guard change performed daily every hour on the hour at Buda Castle (Sandor Palace).
See budacastlebudapest.com

Guards on horseback at the Mausoleum of Mohammed V, probably changed every 2hrs.
See www.youtube.com

"The Changing of the Guard Ceremony is held every last Friday of the month at St George's Square, Valletta."

Ceremonial opening performed daily at 09:00 at Middle and Byward Towers. The Word ceremony performed daily at 15:00 at Byward Tower. Ceremony of the Keys performed daily at 21:30 (requires tickets). Guard change performed daily every two hours.
See changing-guard.com

Ceremony performed daily every half hour from 14:30 in summer months in front of the Palazzo Pubblico.
See www.agriturismolebosche.com

Ceremony performed daily in summer at 10:00 on the parade grounds of the Citadelle.
See www.lacitadelle.qc.ca

Ceremony performed daily at noon in the first courtyard of the Prague Castle; guard change performed daily every hour on the hour at gates to the Prague Castle.
See prague-castle.org

Ceremony performed daily every hour on the hour at the Tomb of the Unknown Soldier. Ceremony performed on Saturday at noon between April and October in Cathedral Square of the Kremlin.
See www.lonelyplanet.com

At the Temple

Ceremony performed on Thursday mornings at 11:45 in front of the Barbados Garrison.
See barbados.org

Palacio do Planalto. “There is a ceremonial changing of the guard outside the gates every hour on weekends and every two hours during the week.” (LP)
See www.youtube.com