calendar

name	calendar
description	Manage your Google Calendar via Python API. Use when asked to: - Add flights from booking emails or text - Add travel blocks before/after flights - Query calendar for availability, conflicts, or upcoming events - Create reminders for car rentals, pickups, etc. Triggers: "add this flight", "check my calendar", "when am I free", "add travel blocks", "what's on my calendar", "find my flights"

Calendar Management

Setup

Credentials: ~/.config/google-calendar/

• credentials.json — OAuth client config (see SETUP.md)
• token.json — Auth token (auto-refreshes)

Quick Python Access

import os
from google.oauth2.credentials import Credentials
from googleapiclient.discovery import build

TOKEN_PATH = os.path.expanduser("~/.config/google-calendar/token.json")
creds = Credentials.from_authorized_user_file(TOKEN_PATH, ['https://www.googleapis.com/auth/calendar'])
service = build('calendar', 'v3', credentials=creds)

# Query events
events = service.events().list(
    calendarId='primary',
    timeMin="2026-02-01T00:00:00Z",
    timeMax="2026-02-28T23:59:59Z",
    singleEvents=True,
    orderBy='startTime',
    q='search term'  # optional
).execute()

# Create event
event = {
    'summary': 'Event title',
    'start': {'dateTime': '2026-02-15T10:00:00Z', 'timeZone': 'UTC'},
    'end': {'dateTime': '2026-02-15T11:00:00Z', 'timeZone': 'UTC'},
    'location': 'Optional location',
    'description': 'Optional notes'
}
service.events().insert(calendarId='primary', body=event).execute()

# Update event
service.events().update(calendarId='primary', eventId=event_id, body=event).execute()

Adding Flights

When given flight details (from email or text):

1. Extract: flight number, date, departure time, arrival time, route, booking ref

2. Create event with:

   • Summary: ✈️ {flight} {origin} → {dest} (e.g., ✈️ VS157 LHR → BOS)
   • Start: departure time (local to origin, converted to UTC)
   • End: arrival time (local to destination, converted to UTC)
   • Location: departure airport
   • Description: airline, booking ref, arrival info with timezones noted

3. Add travel blocks: e.g., 3hr before departure, 2hr after arrival as "Travel"

Timezone Reference

from zoneinfo import ZoneInfo
from datetime import datetime

# Convert local time to UTC
local_tz = ZoneInfo("America/New_York")
local_time = datetime(2026, 3, 15, 10, 0, tzinfo=local_tz)
utc_time = local_time.astimezone(ZoneInfo('UTC'))

Common zones: Europe/London, America/New_York, America/Los_Angeles, Asia/Tokyo

Car Rental Reminders

Create event at pickup time:

• Summary: 🚗 Car Pickup - {location} #{booking}
• Duration: 1 hour
• Location: airport/rental location
• Description: booking ref, return date/time, "bring: license, credit card, confirmation"

Custom Scripts (Optional)

You can create helper scripts for recurring tasks:

Script	Purpose
adjust_sleep_for_travel.py	Shift sleep blocks to local timezone for trips
add_travel_blocks.py	Add buffer time before/after all flights

Store in ~/.config/google-calendar/ alongside credentials.