user: I'm working on a project that requires some diverse bits of information. First, I need to schedule a meeting with a client who is located at the coordinates with longitude 120.97388 and latitude 23.973875; I want to make sure I get the timezone correct to avoid any confusion. Additionally, there's a design aspect where I need to calculate the area of a circular plot with a radius of 15 meters for the landscaping team. Lastly, I'm keeping an eye on my investment portfolio and I'm curious about the latest stock price for Apple. Could you provide me with the timezone for the specified coordinates, the area of the circle, and the current stock price for Apple?

Available functions:
name: get_time_zone_by_coord
description: Finds the timezone of a coordinate.
parameters: type: dict
properties: long: type: string
description: The longitude of the coordinate.
lat: type: string
description: The latitude of the coordinate.
required: long
lat
name: geometry_area_circle
description: Calculates the area of a circle.
parameters: type: dict
properties: radius: type: integer
description: The radius of the circle, in feet.
required: radius
name: get_stock_price_by_stock_name
description: Finds the price of a stock by its stock name.
parameters: type: dict
properties: stock_name: type: string
description: The stock name of the product, in the format of the stock symbol.
required: stock_name

Ground truth function call(s):
get_time_zone_by_coord(long='120.97388', lat='23.973875')
geometry_area_circle(radius=15)
get_stock_price_by_stock_name(stock_name='AAPL')