You typed mormon vs seventh day adventist because two pins looked like church and you need to know which day to leave the house. They are not the same calendar.
Searchers say Mormon. The map and the lander usually say LDS or Latter-day Saints. Same family of pins. Different week from a Seventh-day Adventist church.
The difference that actually changes your weekend is Saturday Adventist Sabbath vs Sunday LDS sacrament meeting. Building type matters too. Not a 40-tab theology chart.
The headline pin: Saturday vs Sunday
Seventh-day Adventist churches keep Saturday as the Sabbath. That is the main weekly gathering for most Adventist pins. Friday sundown to Saturday sundown is the holy window. If you show up Sunday morning looking for the main Adventist hour, you may find an empty parking lot. Confirm the time the day you go. Confirm service times before you leave the driveway. First-visit Adventist logistics live in Seventh-day Adventist church near me without rewriting that post here.
An LDS Sunday usually centers on sacrament meeting at the meetinghouse. Sitting, hymns, talks, and the sacrament of bread and water. First-visit logistics live in LDS sacrament meeting first visit.
If a Saturday Sabbath room is the hunt, open Seventh-day Adventist church near me. If a Latter-day Saint meetinghouse pin is what you want, start on LDS church near me.
Visitor notice: do not invent the schedule from a steeple photo. Check the listing and the website the same day you go.
Meetinghouse vs temple (do not mix the LDS pins)
The first-visit LDS pin is almost always a meetinghouse / chapel for Sunday sacrament meeting. Temples are a separate track with different preparation and access rules. Do not drive to a temple photo on Maps and expect a drop-in Sunday hour.
Adventist first visits are the local open meetinghouse / church building. That is the whole pin. No temple track.
Immersion language overlaps. Authority does not.
Both traditions often talk immersion baptism. That is not the divider by itself.
Adventist baptism is usually believer's immersion. Kids grow up in the room and get baptized later, when they decide. Local churches sit in a layered conference structure.
LDS baptism is usually immersion around age eight for children raised in the faith, or later for converts. Local wards sit in a stake structure. Leadership and teaching come through the Restored Church frame.
If the denomination line looks messy, how to read a church listing is the decoder. Soft notes: Baptist vs Mormon and Catholic vs Seventh-day Adventist are different pin pairs. Do not collapse them into this one.
Two soft health cues, then stop
Adventist rooms often carry a health message. Vegetarian options show up at potluck more often than in many other Protestant halls. That is real. It is not the whole faith.
LDS teaching includes the Word of Wisdom. Coffee and alcohol norms show up in everyday life for many members. You do not need a quiz on try number one. Listen. Ask later.
Communion / sacrament
Adventist Communion is often less frequent than weekly evangelical rooms. Foot washing shows up in some Adventist Communion services. Staying seated is fine on try number one.
In LDS sacrament meeting the trays usually pass every week for a remembrance sacrament. Bread and often water. Visitors are commonly welcome to sit through it. Taking or passing is your call.
Pick a lander. Go once.
You do not need a forever church from a comparison post. You need a door.
Saturday Sabbath gathering, Adventist conference structure, open meetinghouse: Seventh-day Adventist church near me.
Sunday sacrament meeting, LDS / Latter-day Saints on the pin, meetinghouse not temple: LDS church near me.
City or ZIP. Open a listing. Confirm the day and the time. Go once. Then decide if you go back.