docs: fix typos

Author: ilbertt

CHANGELOG.md

@@ -7,7 +7,7 @@
 - feat: adds a `clockDriftMs` optional parameter to `Expiry.fromDeltaInMilliseconds` to add to the current time, typically used to specify the clock drift between the client's clock and the IC network clock.
 - fix: account for clock drift when verifying the certificate freshness.
 - feat: adds the `timeDiffMsecs` optional field to the `CreateCertificateOptions` interface, which allows you to adjust the current time when verifying the certificate freshness.
-- feat: adds the `getTimeDiffMsecs` function to the `HttpAgent` class, which returns the time difference in milliseconds between the client's clock and the IC network clock. It also adds the `getTimeDiffMsecs` function to handle the case where the `HttpAgent` is not an instance of `HttpAgent`.
+- feat: adds the `getTimeDiffMsecs` function to the `HttpAgent` class, which returns the time difference in milliseconds between the client's clock and the IC network clock. It also adds the `getTimeDiffMsecs` function to handle the case where the agent is not an instance of `HttpAgent`.
 
 ## [3.1.0] - 2025-07-24
 

packages/agent/src/agent/http/index.ts

@@ -1391,6 +1391,8 @@ export class HttpAgent implements Agent {
    * Returns the time difference in milliseconds between the client's clock and the IC network clock,
    * after the clock has been synced using the {@link HttpAgent.syncTime} method
    * or during agent creation if {@link HttpAgentOptions.shouldSyncTime} was set to `true`.
+   *
+   * If the time has not been synced, returns `0`.
    */
   public getTimeDiffMsecs(): number {
     return this.#timeDiffMsecs;
@@ -1413,10 +1415,10 @@ export function calculateIngressExpiry(
 }
 
 /**
- * Retrieves the time different in milliseconds between the client's clock and the IC network clock.
+ * Retrieves the time difference in milliseconds between the client's clock and the IC network clock.
  * See {@link HttpAgent.getTimeDiffMsecs} for more details.
  * @param agent The agent to retrieve the `timeDiffMsecs` property from.
- * @returns The time different in milliseconds between the client's clock and the IC network clock,
+ * @returns The time difference in milliseconds between the client's clock and the IC network clock,
  * if the agent is an {@link HttpAgent} instance. `undefined` otherwise.
  */
 export function getTimeDiffMsecs(agent: Agent | HttpAgent): number | undefined {