r/scifi peaks Saturdays 3pm-5pm UTC
r/scifi was created on January 25, 2008, making it 18 years and 5 months old and one of the earliest subreddits on Reddit. With 4,481,032 members, this is a large and well-established subreddit with significant reach and influence on Reddit.
r/scifi is steadily growing, with 7,038 new members in the last 30 days.
r/scifi shows typical engagement for a community of this scale, with an average of 186.6 upvotes per post across its 4,481,032 members. The community is moderately discussion-oriented, with a comment-to-upvote ratio of 0.36. To reach the Hot section of r/scifi, posts typically need at least 7 upvotes, reflecting the community's activity level.
Posts on r/scifi receive an average of 68.0 comments, indicating a community with a healthy balance between content appreciation and active discussion. Members regularly engage with posts through both upvotes and comments.
Based on an analysis of 72 top posts from the past week, Saturday is the most active day with 21 posts reaching the top, while Friday sees the least activity with 6 posts. Weekend activity tends to outpace weekdays, suggesting a more leisure-oriented community.
The peak posting hours are around 3pm UTC (7 posts), 6pm UTC (6 posts), and 4am UTC (6 posts). The quietest hours are 9am UTC, 8am UTC, and 5am UTC, with only 1-1 posts each reaching the top during these times.
Weekly breakdown: Monday (9), Tuesday (8), Wednesday (13), Thursday (6), Friday (6), Saturday (21), Sunday (9) posts reaching the top.
r/scifi currently has 4,481,032 subscribers. Over the past 30 days, the community has grown by 7,038 members (0.16%), averaging 235 new subscribers per day. This growth rate places r/scifi in the top 26% of all tracked subreddits.
Over the past 90 days, r/scifi has gained 19,579 subscribers (0.44%). Since tracking began 677 days ago, the community has added 190,323 total subscribers.
r/scifi is steadily growing, with 7,038 new members in the last 30 days.
r/scifi has 4,481,032 subscribers as of July 2026.
The best time to post on r/scifi is Saturdays 3pm-5pm UTC, based on analysis of top-performing posts from the past week.
r/scifi is steadily growing, with 7,038 new members in the last 30 days.
r/scifi was created on January 25, 2008, making it 18 years old.
Posts on r/scifi typically need at least 7 upvotes to reach the Hot section.
r/scifi is a Reddit community with 4,481,032 subscribers. The community describes itself as: "Welcome to r/scifi, a home for all things science fiction, the heart of speculative fiction. Join the discussion about your favorite books, authors, movies, shows, comics, and games — anything..." The best time to post on r/scifi is Saturdays 3pm-5pm UTC. Posts receive an average of 186.6 upvotes and 68.0 comments. The minimum upvotes needed to reach the Hot section is approximately 7. The subreddit is adding approximately 235 new members each day. Founded 18 years ago, r/scifi is tracked and analyzed by RedditList as part of its comprehensive database of over 106,362 subreddits.
Last updated: 2026-07-08 02:33:17