합쇼체(hap-syo-che, hapsyoche)
Formal polite speech used in official, formal situations
When to use
Official presentation, News broadcast, Formal speech
The nuance
합쇼체 is mainly used in official events, presentations, news broadcasts, and very formal occasions. It has a written-like tone and sounds stiff and highly respectful.
하십시오체(ha-sip-si-o-che, hasipsioche)
Polite speech used in everyday respectful communication
When to use
Work conversations, Customer service, Everyday polite speech
The nuance
하십시오체 is used in everyday conversations, talking to superiors at work, customer service, etc. It is softer and more natural than 합쇼체.