Time - fix type error where TooltipButton text could be undefined (#2877)

Author: shleewhite

.changeset/itchy-ravens-shout.md

@@ -0,0 +1,5 @@
+---
+"@hashicorp/design-system-components": patch
+---
+
+`Time` - fixed type error where the TooltipButton text could be undefined.

packages/components/src/components/hds/time/index.hbs

@@ -8,7 +8,6 @@
     {{~#if this.hasTooltip~}}
       <Hds::TooltipButton
         class="hds-time-wrapper"
-        {{! @glint-expect-error: FIXME: pnpm migration }}
         @text={{if
           display.options.tooltipFormat
           (hds-format-date this.date display.options.tooltipFormat)

packages/components/src/components/hds/time/index.ts

@@ -87,14 +87,16 @@ export default class HdsTime extends Component<HdsTimeSignature> {
     return this.args.hasTooltip ?? true;
   }
 
-  get isoUtcString(): string | undefined {
+  get isoUtcString(): string {
     const date = this.date;
 
     if (dateIsValid(date)) {
-      return this.hdsTime.toIsoUtcString(date);
+      const isoUtcString = this.hdsTime.toIsoUtcString(date);
+
+      if (isoUtcString) return isoUtcString;
     }
 
-    return undefined;
+    return '';
   }
 
   get rangeIsoUtcString(): string {