diff --git a/README.md b/README.md
index 7081f1f..5191093 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,11 @@ nanomath --format ns '2004-11-23T12:30:00Z + 4Y - 10D - (12h + 30m)' # 122644800
 nanomath --format m '2008-11-12T00:00:00Z - 2004-11-23T12:30:00Z' # 2087250m
 ```
 
+- Supports `ns`, `us`, `ms`, `s`, `m`, `h`, `D`, `W`, `M` and `Y` suffixes.
+- Timezone designators (according to the following [TZ identifiers](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones)) are supported, albeit with minimal testing.
+
+:wrench: *nanomath* is currently under active development. 
+
 ## Build
 ```bash
 git clone https://github.com/zdryan/nanomath