Datetime Advanced

Introduction

Advanced datetime operations including timezones and periods.

Timezones

from datetime import datetime, timezone
import pytz

# UTC timezone
utc = datetime.now(timezone.utc)

# Specific timezone
eastern = pytz.timezone("US/Eastern")
local = utc.astimezone(eastern)

# Create timezone-aware datetime
dt = eastern.localize(datetime(2024, 6, 15, 10, 30))

Timedelta Operations

from datetime import timedelta

delta = timedelta(days=30, hours=12, minutes=45)

# Add to datetime
future = datetime.now() + delta

# Calculate difference
diff = future - datetime.now()
print(diff.total_seconds())

Time Periods

from datetime import datetime
import pandas as pd

# Using pandas for periods
period = pd.Period("2024-06", freq="M")
print(period.start_time, period.end_time)

# Date range
dates = pd.date_range("2024-01-01", periods=12, freq="M")

Practice Problems

1. Convert between timezones
2. Calculate business days between dates
3. Generate monthly periods
4. Handle DST transitions
5. Parse ISO 8601 strings