Alice

both dramas are about time travelling, solving mysteries, and changing lives. plot in someday or one day is executed perfectly, so if you liked alice, definitely cannot miss someday or one day

Pretty similar to the grid in terms of being futuristic and the action and the time travel part. Also gets you hooked since the first ep.

These two dramas have similar complexity based on different concepts. Parallel worlds and thriller mystery are involved in both dramas.

The time travel and forbidden love.....................................................................................................................................................................................................................................

Both dramas have time travellers.
A common theme of Searial murderer (the culprit is the unexpected near person) and both the male lead wants to save their beloved ones from tragedies.

Same female lead .Also both are fantasy dramas. Plotwise it's different but have some similarities .

While these two may not both have the same plot (one is about time-travel and solving a mystery while the other is about the abuse and kidnapping of a child) they both share the overlaying theme of maternal love.
The love that these mothers had for their children is enough to make you cry.

Alice wasn't a time loop drama but it was all about time travel
it was utterly stupid though after few good first episodes
and at the end of it ,,you won't understand what actually happened

Both have unexplainable phenomenon/plot mystery. Both have a sort of time travel. Both are trying to prevent a catastrophe. However, Alice is more future based than in the past. Alice has a ML and FL, but the main character is the ML. Lastly, ATCY is much more romance heavy whereas Alice has sense of romance but overall is not a romance between the ML and FL.

both are fantasy, mystery, sci-fi genres about time travelling and people trying to change their life

Both are about time travelling. A female coming from the future to present day to fix what went wrong in time traveling in the first place.

Both involve detectives and time travelling. The mystery unfolds slowly, while keeping the audience on the edge of their seat with each episode. Parallel worlds infused in science-fiction and the genres of crime and thriller. If you liked Signal, you might greatly enjoy Alice.

Both of these are time travel and includes Scifi and there is no romance. Both dramas include action. Of course, they are definitely both really interesting!

Both are time travel, family dramas. In both the older version of the ML meets the younger version of his parent/parents. I myself liked TNF more.

In 2050, the organization Alice was formed as a way for humans to travel into another time and parallel world. Soon, however, the "Book of Prophecy" was discovered, which predicted the end of travelers. In an attempt to prevent the book from falling into the wrong hands, Alice sends Yoo Min Hyuk and Yoon Tae Yi to 1992 to retrieve it from the last known keeper of the book. It was during this mission that Tae Yi realized she was pregnant with Yoo Min Hyuk's child and decided to stay to raise their child and hid from Yoo Min Hyuk by changing her name to Park Sun Young.

Park Jin Gyeom, the son of Park Sun Young, is a successful detective in 2020. His path crossed with the Yoon Tae Yi of this world, a physics professor specializing in quantum and temporal mechanics, and who looks exactly like his mother. The meeting of Park Jin Gyeom and Yoon Tae Yi was the start of their journey to rediscover the Book of Prophecy and their search for answers.