How Many Hours a Day: Online Schools
Last modified: Aug 31, 2026 3 min read
When most parents wonder how online schools work, one of the first questions about online school they tend to ask is how many hours a day are online classes conducted.
21K School follows an annual academic calendar and conducts live classes online from a period of one to four hours depending on the Grade of the student.
Since 21K School enables students to learn at their own pace, it's an extremely flexible and beneficial option for them. Students are provided with a world-class education in their homes along with a flexible schedule to ensure that the students have a nurturing and educationally rich environment.
This schedule works around the careers of parents who constantly need to travel or around the extracurricular pursuits that students might have. Unlike traditional schools, online schools provide an array of benefits to both the parents and students due to the absence of a rigid schedule. Let's take a look at the hours for each grade:
| GRADE | AGE | HOURS |
|---|---|---|
| NURSERY | 3 | 1 HOUR / 5 DAYS A WEEK |
| KG1 | 4 | 2 HOURS / 5 DAYS A WEEK |
| KG2 | 5 | 2 HOURS / 5 DAYS A WEEK |
| GRADE 1 | 6 | 3 HOURS / 6 DAYS A WEEK |
| GRADE 2 | 7 | 3 HOURS / 6 DAYS A WEEK |
| GRADE 3 | 8 | 3 HOURS / 6 DAYS A WEEK |
| GRADE 4 | 9 | 3 HOURS / 6 DAYS A WEEK |
| GRADE 5 | 10 | 3 HOURS / 6 DAYS A WEEK |
| GRADE 6 | 11 | 4 HOURS / 6 DAYS A WEEK |
| GRADE 7 | 12 | 4 HOURS / 6 DAYS A WEEK |
| GRADE 8 | 13 | 4 HOURS / 6 DAYS A WEEK |
Frequently asked questions
5 questions
Why does 21K School use small batch timings?
Small batches offer various benefits, such as to provide personalised attention to each student, creating a better learning environment, managing student behaviour more effectively, and improving academic performance.
Are three to four hours of live classes sufficient for Grade 1-8?
Having a three to four-hour class ensures that the child is well-rested and can retain what is taught. A tired child cannot learn optimally. In addition, we have experienced teachers trained in the 21K methodology who know how to engage the child for the entire lesson duration. They also know how to gauge when a child is tired and needs a break.
Can I change the Batch in 21K School?
Students can change their Batch only once a month and up to three times during an academic year.
How long should a virtual class be?
The ideal length of a virtual class can vary depending on the students' age group and attention span, as well as the subject matter being taught.
What is the duration of online classes in 21K School?
The classes in 21K School range between 1 to 4 hours depending on the grade. Visit our website for more information on our batch timings.
About the author
21K School Team
Education Content Specialist
21K School Team is a group of highly talented and like-minded professionals focused on the creation of informative and engaging content for the audience. Coming from diverse writing backgrounds, the team comes up with unique ideas for sharing information with the 21K School audience. When not writing, you can find the 21K School Team members working closely with interdisciplinary teams for impactful content marketing.
Every 21K School guide is written by our education team and reviewed by a subject facilitator before publishing.
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