diff --git a/src/plugins/timeConductor/Conductor.vue b/src/plugins/timeConductor/Conductor.vue
index c7491079a4..27039b80e2 100644
--- a/src/plugins/timeConductor/Conductor.vue
+++ b/src/plugins/timeConductor/Conductor.vue
@@ -73,15 +73,22 @@
             >
                 <!-- RT start -->
                 <div class="c-direction-indicator icon-minus"></div>
-                <input
+                <time-popup
+                    v-if="showTCInputStart"
+                    class="pr-tc-input-menu--start"
+                    :type="'start'"
+                    :offset="offsets.start"
+                    @focus.native="$event.target.select()"
+                    @hide="hideAllTimePopups"
+                    @update="timePopUpdate"
+                />
+                <button
+                    @click="showTimePopupStart"
+                    class="c-button c-conductor__delta-button"
                     ref="startOffset"
-                    v-model="offsets.start"
-                    class="c-input--hrs-min-sec"
-                    type="text"
-                    autocorrect="off"
-                    spellcheck="false"
-                    @change="validateAllOffsets(); submitForm()"
                 >
+                    {{ offsets.start }}
+                </button>
             </div>
 
             <div class="c-ctrl-wrapper c-conductor-input c-conductor__end-fixed">
@@ -114,15 +121,22 @@
             >
                 <!-- RT end -->
                 <div class="c-direction-indicator icon-plus"></div>
-                <input
+                <time-popup
+                    v-if="showTCInputEnd"
+                    class="pr-tc-input-menu--end"
+                    :type="'end'"
+                    :offset="offsets.end"
+                    @focus.native="$event.target.select()"
+                    @hide="hideAllTimePopups"
+                    @update="timePopUpdate"
+                />
+                <button
                     ref="endOffset"
-                    v-model="offsets.end"
-                    class="c-input--hrs-min-sec"
-                    type="text"
-                    autocorrect="off"
-                    spellcheck="false"
-                    @change="validateAllOffsets(); submitForm()"
+                    class="c-button c-conductor__delta-button"
+                    @click="showTimePopupEnd"
                 >
+                    {{offsets.end}}
+                </button>
             </div>
 
             <conductor-axis
@@ -164,6 +178,7 @@ import DatePicker from './DatePicker.vue';
 import ConductorAxis from './ConductorAxis.vue';
 import ConductorModeIcon from './ConductorModeIcon.vue';
 import ConductorHistory from './ConductorHistory.vue';
+import TimePopup from './timePopup.vue';
 
 const DEFAULT_DURATION_FORMATTER = 'duration';
 
@@ -174,7 +189,8 @@ export default {
         DatePicker,
         ConductorAxis,
         ConductorModeIcon,
-        ConductorHistory
+        ConductorHistory,
+        TimePopup
     },
     inject: ['openmct', 'configuration'],
     data() {
@@ -209,7 +225,9 @@ export default {
             showDatePicker: false,
             altPressed: false,
             isPanning: false,
-            isZooming: false
+            isZooming: false,
+            showTCInputStart: false,
+            showTCInputEnd: false
         };
     },
     computed: {
@@ -458,6 +476,23 @@ export default {
             this.formattedBounds.end = this.timeFormatter.format(date);
             this.validateAllBounds('endDate');
             this.submitForm();
+        },
+        hideAllTimePopups() {
+            this.showTCInputStart = false;
+            this.showTCInputEnd = false;
+        },
+        showTimePopupStart() {
+            this.hideAllTimePopups();
+            this.showTCInputStart = !this.showTCInputStart;
+        },
+        showTimePopupEnd() {
+            this.hideAllTimePopups();
+            this.showTCInputEnd = !this.showTCInputEnd;
+        },
+        timePopUpdate({ type, hours, minutes, seconds }) {
+            this.offsets[type] = [hours, minutes, seconds].join(':');
+            this.setOffsetsFromView();
+            this.hideAllTimePopups();
         }
     }
 };
diff --git a/src/plugins/timeConductor/conductor.scss b/src/plugins/timeConductor/conductor.scss
index 4ecba9e3f2..eb083d0b0b 100644
--- a/src/plugins/timeConductor/conductor.scss
+++ b/src/plugins/timeConductor/conductor.scss
@@ -207,14 +207,10 @@
 }
 
 .is-realtime-mode {
-    button {
+    .c-conductor__controls button,
+    .c-conductor__delta-button {
         @include themedButton($colorTimeBg);
         color: $colorTimeFg;
-
-        &:hover {
-            background: $colorTimeHov !important;
-            color: $colorTimeFg !important;
-        }
     }
 
     .c-conductor-input {
@@ -233,6 +229,59 @@
             box-shadow: none;
             color: $colorTime;
             pointer-events: none;
+
+            &[disabled] {
+                opacity: 1 !important;
+            }
+        }
+    }
+}
+
+// Prototype
+[class^='pr-tc-input-menu'] {
+    // Uses ^= here to target both start and end menus
+    background: $colorBodyBg;
+    border-radius: $controlCr;
+    display: grid;
+    grid-template-columns: 1fr 1fr 2fr;
+    grid-column-gap: 3px;
+    grid-row-gap: 4px;
+    align-items: start;
+
+    filter: brightness(1.4);
+    box-shadow: $shdwMenu;
+    padding: $interiorMargin;
+    position: absolute;
+    bottom: 24px;
+    z-index: 99;
+
+    &[class*='--start'] {
+        left: -25px;
+    }
+
+    &[class*='--end'] {
+        right: 0;
+    }
+}
+
+[class^='pr-time'] {
+    &[class*='label'] {
+        font-size: 0.8em;
+        opacity: 0.6;
+        text-transform: uppercase;
+    }
+
+    &[class*='controls'] {
+        display: flex;
+        align-items: center;
+        white-space: nowrap;
+
+        input {
+            height: 22px;
+            line-height: 22px;
+            margin-right: $interiorMarginSm;
+            font-size: 1.25em;
+            width: 42px;
         }
     }
 }
diff --git a/src/plugins/timeConductor/timePopup.vue b/src/plugins/timeConductor/timePopup.vue
new file mode 100644
index 0000000000..62015d6913
--- /dev/null
+++ b/src/plugins/timeConductor/timePopup.vue
@@ -0,0 +1,171 @@
+<template>
+<div
+    class="pr-tc-input-menu"
+    @keydown.enter.prevent
+    @keyup.enter.prevent="submit"
+    @click.stop
+>
+    <div class="pr-time-label__hrs">Hrs</div>
+    <div class="pr-time-label__mins">Mins</div>
+    <div class="pr-time-label__secs">Secs</div>
+
+    <div class="pr-time-controls">
+        <input
+            ref="inputHrs"
+            v-model="inputHrs"
+            class="pr-time-controls__hrs"
+            step="1"
+            type="number"
+            min="0"
+            max="23"
+            title="Enter 0 - 23"
+            @change="validate()"
+            @keyup="validate()"
+            @focusin="selectAll($event)"
+            @focusout="format('inputHrs')"
+            @wheel="increment($event, 'inputHrs')"
+        >
+        :
+    </div>
+    <div class="pr-time-controls">
+        <input
+            ref="inputMins"
+            v-model="inputMins"
+            type="number"
+            class="pr-time-controls__mins"
+            min="0"
+            max="59"
+            title="Enter 0 - 59"
+            step="1"
+            @change="validate()"
+            @keyup="validate()"
+            @focusin="selectAll($event)"
+            @focusout="format('inputMins')"
+            @wheel="increment($event, 'inputMins')"
+        >
+        :
+    </div>
+    <div class="pr-time-controls">
+        <input
+            ref="inputSecs"
+            v-model="inputSecs"
+            type="number"
+            class="pr-time-controls__secs"
+            min="0"
+            max="59"
+            title="Enter 0 - 59"
+            step="1"
+            @change="validate()"
+            @keyup="validate()"
+            @focusin="selectAll($event)"
+            @focusout="format('inputSecs')"
+            @wheel="increment($event, 'inputSecs')"
+        >
+        <div class="pr-time__buttons">
+            <button
+                class="c-button c-button--major icon-check"
+                :disabled="isDisabled"
+                @click.prevent="submit"
+            ></button>
+            <button class="c-button icon-x"
+                    @click.prevent="hide"
+            ></button>
+        </div>
+    </div>
+</div>
+</template>
+
+<script>
+
+export default {
+    props: {
+        type: {
+            type: String,
+            required: true
+        },
+        offset: {
+            type: String,
+            required: true
+        }
+    },
+    data() {
+        return {
+            inputHrs: '00',
+            inputMins: '00',
+            inputSecs: '00',
+            isDisabled: false
+        };
+    },
+    mounted() {
+        this.setOffset();
+        document.addEventListener('click', this.hide);
+    },
+    beforeDestroy() {
+        document.removeEventListener('click', this.hide);
+    },
+    methods: {
+        format(ref) {
+            const curVal = this[ref];
+            this[ref] = curVal.padStart(2, '0');
+        },
+        validate() {
+            let disabled = false;
+            let refs = ['inputHrs', 'inputMins', 'inputSecs'];
+
+            for (let ref of refs) {
+                let min = Number(this.$refs[ref].min);
+                let max = Number(this.$refs[ref].max);
+                let value = Number(this.$refs[ref].value);
+
+                if (value > max || value < min) {
+                    disabled = true;
+                    break;
+                }
+            }
+
+            this.isDisabled = disabled;
+        },
+        submit() {
+            this.$emit('update', {
+                type: this.type,
+                hours: this.inputHrs,
+                minutes: this.inputMins,
+                seconds: this.inputSecs
+            });
+        },
+        hide() {
+            this.$emit('hide');
+        },
+        increment($ev, ref) {
+            $ev.preventDefault();
+            const step = (ref === 'inputHrs') ? 1 : 5;
+            const maxVal = (ref === 'inputHrs') ? 23 : 59;
+            let cv = Math.round(parseInt(this[ref], 10) / step) * step;
+            cv = Math.min(maxVal, Math.max(0, ($ev.deltaY < 0) ? cv + step : cv - step));
+            this[ref] = cv.toString().padStart(2, '0');
+            this.validate();
+        },
+        setOffset() {
+            [this.inputHrs, this.inputMins, this.inputSecs] = this.offset.split(':');
+            this.numberSelect('inputHrs');
+        },
+        numberSelect(input) {
+            this.$refs[input].focus();
+
+            // change to text, select, then change back to number
+            // number inputs do not support select()
+            this.$nextTick(() => {
+                this.$refs[input].setAttribute('type', 'text');
+                this.$refs[input].select();
+
+                this.$nextTick(() => {
+                    this.$refs[input].setAttribute('type', 'number');
+                });
+            });
+        },
+        selectAll($ev) {
+            $ev.target.select();
+        }
+    }
+};
+</script>
diff --git a/src/styles/_mixins.scss b/src/styles/_mixins.scss
index b75e705c65..63fca1b30a 100644
--- a/src/styles/_mixins.scss
+++ b/src/styles/_mixins.scss
@@ -375,6 +375,10 @@
     &:focus {
         box-shadow: $shdwInputFoc;
     }
+
+    &::selection {
+        background: rgba($colorKeySelectedBg, 0.5);
+    }
 }
 
 @mixin inlineInput() {