Date & Time

Handling dates and times is a common task in programming. JavaScript provides the built-in Date object to help us work with time.

1. Creating Dates 📅

What is it? A Date object represents a single moment in time.

How it works: You can create a date in 4 ways:

2. Getting Date Info 🔍

Once you have a Date object, you can extract specific parts (year, month, day, etc.).

Crucial:

• getMonth() returns 0-11 (Jan is 0).
• getDay() returns 0-6 (Sunday is 0).
• getDate() returns 1-31 (Day of the month).

3. Formatting Dates 📝

Displaying dates to users requires formatting.

4. Date Arithmetic ➕➖

You can modify dates or calculate the difference between them.

Tip: When you subtract two dates, you get the difference in milliseconds.

5. Timestamps ⏱️

A timestamp is a single number representing milliseconds since January 1, 1970 (Unix Epoch). It's great for storing dates in databases.

Practical Example: "Time Ago" Function ⏳

Quiz

Key Takeaways

✅ Months are 0-indexed (Jan = 0).
✅ Date.now() gives current timestamp.
✅ getTime() converts Date to timestamp.
✅ toISOString() is standard for APIs.
✅ Subtract dates to get time difference.

What's Next?

Now let's learn how to handle errors gracefully with Error Handling!

Keep coding! 🚀