Python timestamp to datetime and vice-versa

You’ll mainly use:

from datetime import datetime
datetime.fromtimestamp()
datetime.timestamp()

---

🕰️ Python — Timestamp ↔ Datetime Assignments

---

1) Convert Current Datetime to Timestamp

Get the current datetime and convert it to a timestamp. Print the result.

---

2) Timestamp to Datetime

Convert the timestamp 0 to a datetime and print it. (This is the Unix epoch.)

---

3) Convert Given Datetime to Timestamp

Create a datetime object for:

2026-01-01 00:00:00

Convert it to a timestamp.

---

4) Convert Timestamp to Readable

Convert timestamp:

1609459200

to a human-readable datetime and print.

---

5) Timestamp from User Date

Ask the user to enter a date/time string:

YYYY-MM-DD HH:MM:SS

Convert it to timestamp and print.

---

6) Datetime from User Timestamp

Ask the user to enter a timestamp (e.g., 1670000000). Convert it to a datetime and print.

---

7) Compare Timestamps

Get the timestamps for now and for:

2026-12-31 23:59:59

Print which is larger.

---

8) Difference in Seconds

Ask for two timestamps from user and print how many seconds apart they are.

---

9) Timestamp Before/After Now

Get current timestamp and print whether it is greater than a fixed timestamp (e.g., 1000000000).

---

10) Days Since Epoch

Convert current timestamp to days since epoch (timestamp // (24*3600)) and print result.

---

11) Format Converted Datetime

Convert a timestamp to datetime, then print it in:

DD/MM/YYYY HH:MM:SS

---

12) Timestamp from Date Only

Ask for a date string:

YYYY-MM-DD

Parse it to datetime and print its timestamp.

---

13) Round Trip Test

Take current datetime → timestamp → back to datetime. Print all three representations.

---

14) Next Day Timestamp

Take user’s timestamp, add 24 hours (seconds) to it, and convert back to datetime.

---

15) Previous Hour

Take a timestamp and subtract 3600 seconds; print the resulting datetime.

---

16) Midnight Timestamp

Convert today’s date at midnight (00:00:00) to a timestamp.

---

17) UTC Timestamp Conversion

(Optional) Convert a UTC timestamp to a UTC datetime using datetime.utcfromtimestamp().

---

18) Future Date Timestamp

Ask user for a number of days n, compute the date n days from now, and print its timestamp.

---

19) Validate Timestamp Input

Ask for a timestamp string. If the input isn’t numeric, catch the error and print “Invalid timestamp”.

---

20) Sort by Timestamps

Given a list of two datetime objects, convert both to timestamps and print them in ascending order.

---

🧠 Key Methods You’ll Use

from datetime import datetime

# datetime → timestamp
ts = dt_obj.timestamp()

# timestamp → datetime (local)
dt = datetime.fromtimestamp(ts)

# UTC conversion
utc_dt = datetime.utcfromtimestamp(ts)

---

📌 Example Starter Snippet

from datetime import datetime

now = datetime.now()
ts_now = now.timestamp()
print("Now:", now)
print("Timestamp:", ts_now)

# Convert back
dt_from_ts = datetime.fromtimestamp(ts_now)
print("Converted back:", dt_from_ts)

---

📝 Helpful Format Tips

To print a timestamp-converted datetime nicely:

print(dt_from_ts.strftime("%d/%m/%Y %H:%M:%S"))

---

canvil: 333f6c7d-6876-4f7e-b6ad-1bdb2233f5c1