Get outside and celebrate spring, and if you plan to observe in Earth Hour, don't forget that lights go out at 8:30 p.m. on Saturday.

World Fashion Week Toronto

Start your shopping list with shows from dozens of designers serving as inspiration for your fall-winter wardrobe.

When: Monday, March 23 to Sunday, March 29

Location: David Pecaut Square

Cost: Ticket info available on site.

One of a Kind Spring Show and Sale

Meet more than 450 artisans and designers from across Canada, and view hundreds of unique, handmade products.

When: Wednesday, March 25 to Sunday, March 29

Location: Direct Energy Centre

Cost: Tickets are $14 for adults, $10 for students and $7 for youth and seniors

Ghazal Ensemble

Hear this Grammy-nominated Indo-Persian fusion group and attend the optional lecture-demonstration or jam session.

When: Friday, March 27 and Saturday, March 28

Location: Aga Khan Museum

Cost: from $55

Green Living Show

Earth-lovers can learn what's new in sustainability, from eco-friendly beauty products to the hottest electric cars.

When: Friday, March 27 to Sunday, March 29

Location: Metro Toronto Convention Centre

Cost: $15 for adults, $10 for students and seniors

The Heart of Robin Hood

It's the final weekend to see this version of this classic tale of the man who steals from the rich to give to the poor and his merry men.

When: Friday, March 27 to Sunday, March 29

Location: Royal Alexandra Theatre, 260 King St. W.

Cost: from $39

Earth Hour astronomy tour

Head to the University of Toronto's earth science centre and take in shows, lectures and other activities.

When: Saturday, March 28

Location: 22 Willcocks St.

Cost: Free

Brewery Collectibles Buy/Trade/Sell

Beer geeks gather to buy, sell and trade things like old bottles, posters, tap handles and more -- while knocking back a few pints of course.

When: Saturday, March 28

Location: Great Lakes Brewery, 30 Queen Elizabeth Blvd.

Cost: free admission, $5 cans

Beaches 3rd Annual Earth Hour Lights Out

Watch the lights go out from Kew Gardens, which will be lit only by candles and paper lanterns during Earth Hour.

When: Saturday, March 28

Location: Kew Gardens

Cost: Free

Toronto Nepali Film Festival

Learn about life in the Kingdom of Nepal with films like the Red Monsoon and the documentary Who will be Gurkha. (Screenings end just in time for Earth Hour.)

When: Saturday, March 28

Location: Innis Town Hall, 2 Sussex Ave.

Cost: from $10

Gadsen's Old Book and Paper Show

Vintage postcards, comic books, magazines, movie posters and of course old books are among the many printed offerings at this annual show.

When: Sunday, March 29

Location: Artscape Whychwood Barns, 601 Christie St.

Cost: $8 (children 12 and under free)

Did we miss any great events? Share yours in the comments section below.