EdT fragrances are less concentrated and generally don't last all day. It could be great if you're just looking for a small bottle, given its 30-ml volume.
From Sephora
Tiffany & Co. Sheer Eau De Toilette For Her 30Ml
Peacock Bazaar
Tiffany & Co Sheer Eau de Toilette 75ml, 50ml & 30ml Spray - Peacock Bazaar - 30ml
This product is also available at 3 unverified stores.