diff --git a/src/ephemeral.rs b/src/ephemeral.rs
index c546b72d7..42bf9cb28 100644
--- a/src/ephemeral.rs
+++ b/src/ephemeral.rs
@@ -66,6 +66,7 @@ use std::cmp::max;
 use std::collections::BTreeSet;
 use std::fmt;
 use std::num::ParseIntError;
+use std::str::FromStr;
 use std::time::{Duration, UNIX_EPOCH};
 
 use anyhow::{Context as _, Result, ensure};
@@ -123,12 +124,6 @@ impl Timer {
             Self::Enabled { duration }
         }
     }
-
-    /// Tries to parse a string as an integer,
-    /// and converts it to an ephemeral timer value.
-    pub fn from_str(input: &str) -> Result<Timer, ParseIntError> {
-        input.parse::<u32>().map(Self::from_u32)
-    }
 }
 
 impl fmt::Display for Timer {
@@ -137,6 +132,14 @@ impl fmt::Display for Timer {
     }
 }
 
+impl FromStr for Timer {
+    type Err = ParseIntError;
+
+    fn from_str(input: &str) -> Result<Timer, ParseIntError> {
+        input.parse::<u32>().map(Self::from_u32)
+    }
+}
+
 impl rusqlite::types::ToSql for Timer {
     fn to_sql(&self) -> rusqlite::Result<rusqlite::types::ToSqlOutput<'_>> {
         let val = rusqlite::types::Value::Integer(match self {
diff --git a/src/receive_imf.rs b/src/receive_imf.rs
index f1a68e23c..812d1a78f 100644
--- a/src/receive_imf.rs
+++ b/src/receive_imf.rs
@@ -3,6 +3,7 @@
 use std::cmp;
 use std::collections::{BTreeMap, BTreeSet};
 use std::iter;
+use std::str::FromStr as _;
 use std::sync::LazyLock;
 
 use anyhow::{Context as _, Result, ensure};